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Invalid generated Go code when parsing vega-lite json schema #44

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morangorin opened this issue Apr 14, 2018 · 5 comments
Open

Invalid generated Go code when parsing vega-lite json schema #44

morangorin opened this issue Apr 14, 2018 · 5 comments

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@morangorin
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Generating go code from:
https://vega.github.io/schema/vega-lite/v2.0.json
generates go with an invalid syntax. There are at least the following issues:

  1. some descriptions include the character \n and html. Multi-line comments are being generated but are not protected with //
  2. some names in that JSON schema include special characters such as < and > which are invalid in structure name in Go
  3. some references are not found. Perhaps they could be replaced by interface{} such that the code always compiles
@a-h
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a-h commented Apr 14, 2018

Thanks, I can spot that some of the references not being found is basically the same issue as #43. The current generation tool doesn't support the anyOf behaviour.

So this is supported:

{
        "$schema": "http://json-schema.org/schema#",
        "title": "root",
        "properties": {
            "name": {
                "type": [ "integer", "string" ]
            }
        }
    }

But not this:

{
        "$schema": "http://json-schema.org/draft-04/schema#",
        "id": "Example",
        "properties": {
			"name" : {
				"anyOf": [ "string", "number" ] 
			}
		}
    }

@a-h
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a-h commented Apr 14, 2018

So, to support number 3, would probably need to rework the Schema type to change the type of the Properties field away from map[string]*Schema and to something more similar to the AdditionalProperties type which has custom unmarshalling to support the existence of anyOf, allOf keys.

@a-h
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a-h commented Apr 14, 2018

The clean up of the descriptions and JSON schema names should be trivial to resolve though.

a-h added a commit that referenced this issue Apr 14, 2018
@a-h
Prevent struct names from containing invalid characters (#44).
3f9ff84
a-h added a commit that referenced this issue Apr 14, 2018
@a-h
Fix up multi-line descriptions in JSON (#44).
cc7c51f
@a-h
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a-h commented Apr 14, 2018

I'm guessing you want to use the schema generation tool to make a Go API for Vega, which would be quite cool. Those two improvements reduce the work of fixing up the output a fair amount, I think having loads of interface{} on the API surface isn't what you want, but if you want to try it, you can just update generator.go from:

	return "undefined", fmt.Errorf("failed to get a primitive type for schemaType %s and subtype %s",
		schemaType, subType)

To:

	return "interface{}", fmt.Errorf("failed to get a primitive type for schemaType %s and subtype %s",
		schemaType, subType)

I gave it a go and cleaned up the output:

// Code generated by schema-generate. DO NOT EDIT.
package vega

// AggregateTransform
type AggregateTransform struct {
	Aggregate []*AggregatedFieldDef `json:"aggregate"`
	Groupby   []string              `json:"groupby,omitempty"`
}

// AggregatedFieldDef
type AggregatedFieldDef struct {
	As    string      `json:"as"`
	Field string      `json:"field"`
	Op    interface{} `json:"op"`
}

// AndFilter
type AndFilter struct {
	And interface{} `json:"and"`
}

// AutoSizeParams
type AutoSizeParams struct {
	Contains string      `json:"contains,omitempty"`
	Resize   bool        `json:"resize,omitempty"`
	Type     interface{} `json:"type,omitempty"`
}

// Axis
type Axis struct {
	Domain         bool        `json:"domain,omitempty"`
	Format         string      `json:"format,omitempty"`
	Grid           bool        `json:"grid,omitempty"`
	LabelAngle     float64     `json:"labelAngle,omitempty"`
	LabelBound     interface{} `json:"labelBound,omitempty"`
	LabelFlush     interface{} `json:"labelFlush,omitempty"`
	LabelOverlap   interface{} `json:"labelOverlap,omitempty"`
	LabelPadding   float64     `json:"labelPadding,omitempty"`
	Labels         bool        `json:"labels,omitempty"`
	MaxExtent      float64     `json:"maxExtent,omitempty"`
	MinExtent      float64     `json:"minExtent,omitempty"`
	Offset         float64     `json:"offset,omitempty"`
	Orient         interface{} `json:"orient,omitempty"`
	Position       float64     `json:"position,omitempty"`
	TickCount      float64     `json:"tickCount,omitempty"`
	TickSize       float64     `json:"tickSize,omitempty"`
	Ticks          bool        `json:"ticks,omitempty"`
	Title          interface{} `json:"title,omitempty"`
	TitleMaxLength float64     `json:"titleMaxLength,omitempty"`
	TitlePadding   float64     `json:"titlePadding,omitempty"`
	Values         interface{} `json:"values,omitempty"`
	Zindex         float64     `json:"zindex,omitempty"`
}

// AxisConfig
type AxisConfig struct {
	BandPosition    float64     `json:"bandPosition,omitempty"`
	Domain          bool        `json:"domain,omitempty"`
	DomainColor     string      `json:"domainColor,omitempty"`
	DomainWidth     float64     `json:"domainWidth,omitempty"`
	Grid            bool        `json:"grid,omitempty"`
	GridColor       string      `json:"gridColor,omitempty"`
	GridDash        []float64   `json:"gridDash,omitempty"`
	GridOpacity     float64     `json:"gridOpacity,omitempty"`
	GridWidth       float64     `json:"gridWidth,omitempty"`
	LabelAngle      float64     `json:"labelAngle,omitempty"`
	LabelBound      interface{} `json:"labelBound,omitempty"`
	LabelColor      string      `json:"labelColor,omitempty"`
	LabelFlush      interface{} `json:"labelFlush,omitempty"`
	LabelFont       string      `json:"labelFont,omitempty"`
	LabelFontSize   float64     `json:"labelFontSize,omitempty"`
	LabelLimit      float64     `json:"labelLimit,omitempty"`
	LabelOverlap    interface{} `json:"labelOverlap,omitempty"`
	LabelPadding    float64     `json:"labelPadding,omitempty"`
	Labels          bool        `json:"labels,omitempty"`
	MaxExtent       float64     `json:"maxExtent,omitempty"`
	MinExtent       float64     `json:"minExtent,omitempty"`
	ShortTimeLabels bool        `json:"shortTimeLabels,omitempty"`
	TickColor       string      `json:"tickColor,omitempty"`
	TickRound       bool        `json:"tickRound,omitempty"`
	TickSize        float64     `json:"tickSize,omitempty"`
	TickWidth       float64     `json:"tickWidth,omitempty"`
	Ticks           bool        `json:"ticks,omitempty"`
	TitleAlign      string      `json:"titleAlign,omitempty"`
	TitleAngle      float64     `json:"titleAngle,omitempty"`
	TitleBaseline   string      `json:"titleBaseline,omitempty"`
	TitleColor      string      `json:"titleColor,omitempty"`
	TitleFont       string      `json:"titleFont,omitempty"`
	TitleFontSize   float64     `json:"titleFontSize,omitempty"`
	TitleFontWeight interface{} `json:"titleFontWeight,omitempty"`
	TitleLimit      float64     `json:"titleLimit,omitempty"`
	TitleMaxLength  float64     `json:"titleMaxLength,omitempty"`
	TitlePadding    float64     `json:"titlePadding,omitempty"`
	TitleX          float64     `json:"titleX,omitempty"`
	TitleY          float64     `json:"titleY,omitempty"`
}

// AxisResolveMap
type AxisResolveMap struct {
	X interface{} `json:"x,omitempty"`
	Y interface{} `json:"y,omitempty"`
}

// BarConfig
type BarConfig struct {
	Align              interface{} `json:"align,omitempty"`
	Angle              float64     `json:"angle,omitempty"`
	Baseline           interface{} `json:"baseline,omitempty"`
	BinSpacing         float64     `json:"binSpacing,omitempty"`
	Color              string      `json:"color,omitempty"`
	ContinuousBandSize float64     `json:"continuousBandSize,omitempty"`
	DiscreteBandSize   float64     `json:"discreteBandSize,omitempty"`
	Dx                 float64     `json:"dx,omitempty"`
	Dy                 float64     `json:"dy,omitempty"`
	Fill               string      `json:"fill,omitempty"`
	FillOpacity        float64     `json:"fillOpacity,omitempty"`
	Filled             bool        `json:"filled,omitempty"`
	Font               string      `json:"font,omitempty"`
	FontSize           float64     `json:"fontSize,omitempty"`
	FontStyle          interface{} `json:"fontStyle,omitempty"`
	FontWeight         interface{} `json:"fontWeight,omitempty"`
	Interpolate        interface{} `json:"interpolate,omitempty"`
	Limit              float64     `json:"limit,omitempty"`
	Opacity            float64     `json:"opacity,omitempty"`
	Orient             interface{} `json:"orient,omitempty"`
	Radius             float64     `json:"radius,omitempty"`
	Shape              string      `json:"shape,omitempty"`
	Size               float64     `json:"size,omitempty"`
	Stroke             string      `json:"stroke,omitempty"`
	StrokeDash         []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset   float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity      float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth        float64     `json:"strokeWidth,omitempty"`
	Tension            float64     `json:"tension,omitempty"`
	Text               string      `json:"text,omitempty"`
	Theta              float64     `json:"theta,omitempty"`
}

// BinParams Binning properties or boolean flag for determining whether to bin data or not.
type BinParams struct {
	Base    float64   `json:"base,omitempty"`
	Divide  []float64 `json:"divide,omitempty"`
	Extent  []float64 `json:"extent,omitempty"`
	Maxbins float64   `json:"maxbins,omitempty"`
	Minstep float64   `json:"minstep,omitempty"`
	Nice    bool      `json:"nice,omitempty"`
	Step    float64   `json:"step,omitempty"`
	Steps   []float64 `json:"steps,omitempty"`
}

// BinTransform
type BinTransform struct {
	As    string      `json:"as"`
	Bin   interface{} `json:"bin"`
	Field string      `json:"field"`
}

// BrushConfig
type BrushConfig struct {
	Fill             string    `json:"fill,omitempty"`
	FillOpacity      float64   `json:"fillOpacity,omitempty"`
	Stroke           string    `json:"stroke,omitempty"`
	StrokeDash       []float64 `json:"strokeDash,omitempty"`
	StrokeDashOffset float64   `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64   `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64   `json:"strokeWidth,omitempty"`
}

// CalculateTransform
type CalculateTransform struct {
	As        string `json:"as"`
	Calculate string `json:"calculate"`
}

// CompositeUnitSpecAlias
type CompositeUnitSpecAlias struct {
	Data        interface{}            `json:"data,omitempty"`
	Description string                 `json:"description,omitempty"`
	Encoding    *Encoding              `json:"encoding"`
	Height      float64                `json:"height,omitempty"`
	Mark        interface{}            `json:"mark"`
	Name        string                 `json:"name,omitempty"`
	Selection   map[string]interface{} `json:"selection,omitempty"`
	Title       interface{}            `json:"title,omitempty"`
	Transform   []interface{}          `json:"transform,omitempty"`
	Width       float64                `json:"width,omitempty"`
}

// ConditionalMarkPropFieldDef
type ConditionalMarkPropFieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Legend    interface{} `json:"legend,omitempty"`
	Scale     *Scale      `json:"scale,omitempty"`
	Selection interface{} `json:"selection"`
	Sort      interface{} `json:"sort,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// ConditionalTextFieldDef
type ConditionalTextFieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Format    string      `json:"format,omitempty"`
	Selection interface{} `json:"selection"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// ConditionalValueDef
type ConditionalValueDef struct {
	Selection interface{} `json:"selection"`
	Value     interface{} `json:"value"`
}

// Config
type Config struct {
	Area          *MarkConfig      `json:"area,omitempty"`
	Autosize      interface{}      `json:"autosize,omitempty"`
	Axis          *AxisConfig      `json:"axis,omitempty"`
	AxisBand      *VgAxisConfig    `json:"axisBand,omitempty"`
	AxisBottom    *VgAxisConfig    `json:"axisBottom,omitempty"`
	AxisLeft      *VgAxisConfig    `json:"axisLeft,omitempty"`
	AxisRight     *VgAxisConfig    `json:"axisRight,omitempty"`
	AxisTop       *VgAxisConfig    `json:"axisTop,omitempty"`
	AxisX         *VgAxisConfig    `json:"axisX,omitempty"`
	AxisY         *VgAxisConfig    `json:"axisY,omitempty"`
	Background    string           `json:"background,omitempty"`
	Bar           *BarConfig       `json:"bar,omitempty"`
	Circle        *MarkConfig      `json:"circle,omitempty"`
	CountTitle    string           `json:"countTitle,omitempty"`
	FieldTitle    string           `json:"fieldTitle,omitempty"`
	InvalidValues interface{}      `json:"invalidValues,omitempty"`
	Legend        *LegendConfig    `json:"legend,omitempty"`
	Line          *MarkConfig      `json:"line,omitempty"`
	Mark          *MarkConfig      `json:"mark,omitempty"`
	NumberFormat  string           `json:"numberFormat,omitempty"`
	Padding       interface{}      `json:"padding,omitempty"`
	Point         *MarkConfig      `json:"point,omitempty"`
	Range         *RangeConfig     `json:"range,omitempty"`
	Rect          *MarkConfig      `json:"rect,omitempty"`
	Rule          *MarkConfig      `json:"rule,omitempty"`
	Scale         *ScaleConfig     `json:"scale,omitempty"`
	Selection     *SelectionConfig `json:"selection,omitempty"`
	Square        *MarkConfig      `json:"square,omitempty"`
	Stack         interface{}      `json:"stack,omitempty"`
	Style         interface{}      `json:"style,omitempty"`
	Text          *TextConfig      `json:"text,omitempty"`
	Tick          *TickConfig      `json:"tick,omitempty"`
	TimeFormat    string           `json:"timeFormat,omitempty"`
	Title         *VgTitleConfig   `json:"title,omitempty"`
	View          *ViewConfig      `json:"view,omitempty"`
}

// CsvDataFormat
type CsvDataFormat struct {
	Parse interface{} `json:"parse,omitempty"`
	Type  string      `json:"type,omitempty"`
}

// DateTime Object for defining datetime in Vega-Lite Filter.
// If both month and quarter are provided, month has higher precedence.
// `day` cannot be combined with other date.
// We accept string for month and day names.
type DateTime struct {
	Date         float64     `json:"date,omitempty"`
	Day          interface{} `json:"day,omitempty"`
	Hours        float64     `json:"hours,omitempty"`
	Milliseconds float64     `json:"milliseconds,omitempty"`
	Minutes      float64     `json:"minutes,omitempty"`
	Month        interface{} `json:"month,omitempty"`
	Quarter      float64     `json:"quarter,omitempty"`
	Seconds      float64     `json:"seconds,omitempty"`
	Utc          bool        `json:"utc,omitempty"`
	Year         float64     `json:"year,omitempty"`
}

// Encoding
type Encoding struct {
	Color   interface{} `json:"color,omitempty"`
	Detail  interface{} `json:"detail,omitempty"`
	Opacity interface{} `json:"opacity,omitempty"`
	Order   interface{} `json:"order,omitempty"`
	Shape   interface{} `json:"shape,omitempty"`
	Size    interface{} `json:"size,omitempty"`
	Text    interface{} `json:"text,omitempty"`
	Tooltip interface{} `json:"tooltip,omitempty"`
	X       interface{} `json:"x,omitempty"`
	X2      interface{} `json:"x2,omitempty"`
	Y       interface{} `json:"y,omitempty"`
	Y2      interface{} `json:"y2,omitempty"`
}

// EncodingWithFacet
type EncodingWithFacet struct {
	Color   interface{}    `json:"color,omitempty"`
	Column  *FacetFieldDef `json:"column,omitempty"`
	Detail  interface{}    `json:"detail,omitempty"`
	Opacity interface{}    `json:"opacity,omitempty"`
	Order   interface{}    `json:"order,omitempty"`
	Row     *FacetFieldDef `json:"row,omitempty"`
	Shape   interface{}    `json:"shape,omitempty"`
	Size    interface{}    `json:"size,omitempty"`
	Text    interface{}    `json:"text,omitempty"`
	Tooltip interface{}    `json:"tooltip,omitempty"`
	X       interface{}    `json:"x,omitempty"`
	X2      interface{}    `json:"x2,omitempty"`
	Y       interface{}    `json:"y,omitempty"`
	Y2      interface{}    `json:"y2,omitempty"`
}

// EqualFilter
type EqualFilter struct {
	Equal    interface{} `json:"equal"`
	Field    string      `json:"field"`
	TimeUnit interface{} `json:"timeUnit,omitempty"`
}

// FacetFieldDef
type FacetFieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Header    *Header     `json:"header,omitempty"`
	Sort      interface{} `json:"sort,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// FacetMapping
type FacetMapping struct {
	Column *FacetFieldDef `json:"column,omitempty"`
	Row    *FacetFieldDef `json:"row,omitempty"`
}

// FacetSpec
type FacetSpec struct {
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Facet       *FacetMapping `json:"facet"`
	Name        string        `json:"name,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Spec        interface{}   `json:"spec"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// FacetedCompositeUnitSpecAlias
type FacetedCompositeUnitSpecAlias struct {
	Data        interface{}            `json:"data,omitempty"`
	Description string                 `json:"description,omitempty"`
	Encoding    *EncodingWithFacet     `json:"encoding"`
	Height      float64                `json:"height,omitempty"`
	Mark        interface{}            `json:"mark"`
	Name        string                 `json:"name,omitempty"`
	Selection   map[string]interface{} `json:"selection,omitempty"`
	Title       interface{}            `json:"title,omitempty"`
	Transform   []interface{}          `json:"transform,omitempty"`
	Width       float64                `json:"width,omitempty"`
}

// FieldDef Definition object for a data field, its type and transformation of an encoding channel.
type FieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// FilterTransform
type FilterTransform struct {
	Filter interface{} `json:"filter"`
}

// HConcatSpec
type HConcatSpec struct {
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Hconcat     []interface{} `json:"hconcat"`
	Name        string        `json:"name,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// Header Headers of row / column channels for faceted plots.
type Header struct {
	Format     string      `json:"format,omitempty"`
	LabelAngle float64     `json:"labelAngle,omitempty"`
	Title      interface{} `json:"title,omitempty"`
}

// InlineData
type InlineData struct {
	Format interface{} `json:"format,omitempty"`
	Values interface{} `json:"values"`
}

// InterpolateParams
type InterpolateParams struct {
	Gamma float64 `json:"gamma,omitempty"`
	Type  string  `json:"type"`
}

// IntervalSelection
type IntervalSelection struct {
	Bind      string        `json:"bind,omitempty"`
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Mark      *BrushConfig  `json:"mark,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
	Translate interface{}   `json:"translate,omitempty"`
	Type      string        `json:"type"`
	Zoom      interface{}   `json:"zoom,omitempty"`
}

// IntervalSelectionConfig
type IntervalSelectionConfig struct {
	Bind      string        `json:"bind,omitempty"`
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Mark      *BrushConfig  `json:"mark,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
	Translate interface{}   `json:"translate,omitempty"`
	Zoom      interface{}   `json:"zoom,omitempty"`
}

// JsonDataFormat
type JsonDataFormat struct {
	Parse    interface{} `json:"parse,omitempty"`
	Property string      `json:"property,omitempty"`
	Type     string      `json:"type,omitempty"`
}

// LayerSpec
type LayerSpec struct {
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Height      float64       `json:"height,omitempty"`
	Layer       []interface{} `json:"layer"`
	Name        string        `json:"name,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
	Width       float64       `json:"width,omitempty"`
}

// Legend Properties of a legend or boolean flag for determining whether to show it.
type Legend struct {
	EntryPadding float64     `json:"entryPadding,omitempty"`
	Format       string      `json:"format,omitempty"`
	Offset       float64     `json:"offset,omitempty"`
	Orient       interface{} `json:"orient,omitempty"`
	Padding      float64     `json:"padding,omitempty"`
	TickCount    float64     `json:"tickCount,omitempty"`
	Title        interface{} `json:"title,omitempty"`
	Type         string      `json:"type,omitempty"`
	Values       interface{} `json:"values,omitempty"`
	Zindex       float64     `json:"zindex,omitempty"`
}

// LegendConfig
type LegendConfig struct {
	CornerRadius          float64     `json:"cornerRadius,omitempty"`
	EntryPadding          float64     `json:"entryPadding,omitempty"`
	FillColor             string      `json:"fillColor,omitempty"`
	GradientHeight        float64     `json:"gradientHeight,omitempty"`
	GradientLabelBaseline string      `json:"gradientLabelBaseline,omitempty"`
	GradientLabelLimit    float64     `json:"gradientLabelLimit,omitempty"`
	GradientLabelOffset   float64     `json:"gradientLabelOffset,omitempty"`
	GradientStrokeColor   string      `json:"gradientStrokeColor,omitempty"`
	GradientStrokeWidth   float64     `json:"gradientStrokeWidth,omitempty"`
	GradientWidth         float64     `json:"gradientWidth,omitempty"`
	LabelAlign            string      `json:"labelAlign,omitempty"`
	LabelBaseline         string      `json:"labelBaseline,omitempty"`
	LabelColor            string      `json:"labelColor,omitempty"`
	LabelFont             string      `json:"labelFont,omitempty"`
	LabelFontSize         float64     `json:"labelFontSize,omitempty"`
	LabelLimit            float64     `json:"labelLimit,omitempty"`
	LabelOffset           float64     `json:"labelOffset,omitempty"`
	Offset                float64     `json:"offset,omitempty"`
	Orient                interface{} `json:"orient,omitempty"`
	Padding               float64     `json:"padding,omitempty"`
	ShortTimeLabels       bool        `json:"shortTimeLabels,omitempty"`
	StrokeColor           string      `json:"strokeColor,omitempty"`
	StrokeDash            []float64   `json:"strokeDash,omitempty"`
	StrokeWidth           float64     `json:"strokeWidth,omitempty"`
	SymbolColor           string      `json:"symbolColor,omitempty"`
	SymbolSize            float64     `json:"symbolSize,omitempty"`
	SymbolStrokeWidth     float64     `json:"symbolStrokeWidth,omitempty"`
	SymbolType            string      `json:"symbolType,omitempty"`
	TitleAlign            string      `json:"titleAlign,omitempty"`
	TitleBaseline         string      `json:"titleBaseline,omitempty"`
	TitleColor            string      `json:"titleColor,omitempty"`
	TitleFont             string      `json:"titleFont,omitempty"`
	TitleFontSize         float64     `json:"titleFontSize,omitempty"`
	TitleFontWeight       interface{} `json:"titleFontWeight,omitempty"`
	TitleLimit            float64     `json:"titleLimit,omitempty"`
	TitlePadding          float64     `json:"titlePadding,omitempty"`
}

// LegendResolveMap
type LegendResolveMap struct {
	Color   interface{} `json:"color,omitempty"`
	Opacity interface{} `json:"opacity,omitempty"`
	Shape   interface{} `json:"shape,omitempty"`
	Size    interface{} `json:"size,omitempty"`
}

// LookupData
type LookupData struct {
	Data   interface{} `json:"data"`
	Fields []string    `json:"fields,omitempty"`
	Key    string      `json:"key"`
}

// LookupTransform
type LookupTransform struct {
	As      interface{} `json:"as,omitempty"`
	Default string      `json:"default,omitempty"`
	From    *LookupData `json:"from"`
	Lookup  string      `json:"lookup"`
}

// MarkConfig
type MarkConfig struct {
	Align            interface{} `json:"align,omitempty"`
	Angle            float64     `json:"angle,omitempty"`
	Baseline         interface{} `json:"baseline,omitempty"`
	Color            string      `json:"color,omitempty"`
	Dx               float64     `json:"dx,omitempty"`
	Dy               float64     `json:"dy,omitempty"`
	Fill             string      `json:"fill,omitempty"`
	FillOpacity      float64     `json:"fillOpacity,omitempty"`
	Filled           bool        `json:"filled,omitempty"`
	Font             string      `json:"font,omitempty"`
	FontSize         float64     `json:"fontSize,omitempty"`
	FontStyle        interface{} `json:"fontStyle,omitempty"`
	FontWeight       interface{} `json:"fontWeight,omitempty"`
	Interpolate      interface{} `json:"interpolate,omitempty"`
	Limit            float64     `json:"limit,omitempty"`
	Opacity          float64     `json:"opacity,omitempty"`
	Orient           interface{} `json:"orient,omitempty"`
	Radius           float64     `json:"radius,omitempty"`
	Shape            string      `json:"shape,omitempty"`
	Size             float64     `json:"size,omitempty"`
	Stroke           string      `json:"stroke,omitempty"`
	StrokeDash       []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64     `json:"strokeWidth,omitempty"`
	Tension          float64     `json:"tension,omitempty"`
	Text             string      `json:"text,omitempty"`
	Theta            float64     `json:"theta,omitempty"`
}

// MarkDef
type MarkDef struct {
	Align            interface{} `json:"align,omitempty"`
	Angle            float64     `json:"angle,omitempty"`
	Baseline         interface{} `json:"baseline,omitempty"`
	Clip             bool        `json:"clip,omitempty"`
	Color            string      `json:"color,omitempty"`
	Dx               float64     `json:"dx,omitempty"`
	Dy               float64     `json:"dy,omitempty"`
	Fill             string      `json:"fill,omitempty"`
	FillOpacity      float64     `json:"fillOpacity,omitempty"`
	Filled           bool        `json:"filled,omitempty"`
	Font             string      `json:"font,omitempty"`
	FontSize         float64     `json:"fontSize,omitempty"`
	FontStyle        interface{} `json:"fontStyle,omitempty"`
	FontWeight       interface{} `json:"fontWeight,omitempty"`
	Interpolate      interface{} `json:"interpolate,omitempty"`
	Limit            float64     `json:"limit,omitempty"`
	Opacity          float64     `json:"opacity,omitempty"`
	Orient           interface{} `json:"orient,omitempty"`
	Radius           float64     `json:"radius,omitempty"`
	Shape            string      `json:"shape,omitempty"`
	Size             float64     `json:"size,omitempty"`
	Stroke           string      `json:"stroke,omitempty"`
	StrokeDash       []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64     `json:"strokeWidth,omitempty"`
	Style            interface{} `json:"style,omitempty"`
	Tension          float64     `json:"tension,omitempty"`
	Text             string      `json:"text,omitempty"`
	Theta            float64     `json:"theta,omitempty"`
	Type             interface{} `json:"type"`
}

// MarkPropFieldDefWithCondition A FieldDef with Condition<ValueDef>
// {
//    condition: {value: ...},
//    field: ...,
//    ...
// }
type MarkPropFieldDefWithCondition struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Condition interface{} `json:"condition,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Legend    interface{} `json:"legend,omitempty"`
	Scale     *Scale      `json:"scale,omitempty"`
	Sort      interface{} `json:"sort,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// MarkPropValueDefWithCondition A ValueDef with Condition<ValueDef | FieldDef>
// {
//    condition: {field: ...} | {value: ...},
//    value: ...,
// }
type MarkPropValueDefWithCondition struct {
	Condition interface{} `json:"condition,omitempty"`
	Value     interface{} `json:"value,omitempty"`
}

// MultiSelection
type MultiSelection struct {
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Nearest   bool          `json:"nearest,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
	Toggle    interface{}   `json:"toggle,omitempty"`
	Type      string        `json:"type"`
}

// MultiSelectionConfig
type MultiSelectionConfig struct {
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Nearest   bool          `json:"nearest,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
	Toggle    interface{}   `json:"toggle,omitempty"`
}

// NamedData
type NamedData struct {
	Format interface{} `json:"format,omitempty"`
	Name   string      `json:"name"`
}

// NotFilter
type NotFilter struct {
	Not interface{} `json:"not"`
}

// OneOfFilter
type OneOfFilter struct {
	Field    string      `json:"field"`
	OneOf    interface{} `json:"oneOf"`
	TimeUnit interface{} `json:"timeUnit,omitempty"`
}

// OrFilter
type OrFilter struct {
	Or []interface{} `json:"or"`
}

// OrderFieldDef
type OrderFieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Sort      interface{} `json:"sort,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// PositionFieldDef
type PositionFieldDef struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Axis      interface{} `json:"axis,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Scale     *Scale      `json:"scale,omitempty"`
	Sort      interface{} `json:"sort,omitempty"`
	Stack     interface{} `json:"stack,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// RangeConfig
type RangeConfig struct {
	Category  interface{} `json:"category,omitempty"`
	Diverging interface{} `json:"diverging,omitempty"`
	Heatmap   interface{} `json:"heatmap,omitempty"`
	Ordinal   interface{} `json:"ordinal,omitempty"`
	Ramp      interface{} `json:"ramp,omitempty"`
	Symbol    []string    `json:"symbol,omitempty"`
}

// RangeFilter
type RangeFilter struct {
	Field    string        `json:"field"`
	Range    []interface{} `json:"range"`
	TimeUnit interface{}   `json:"timeUnit,omitempty"`
}

// Repeat
type Repeat struct {
	Column []string `json:"column,omitempty"`
	Row    []string `json:"row,omitempty"`
}

// RepeatRef Reference to a repeated value.
type RepeatRef struct {
	Repeat string `json:"repeat"`
}

// RepeatSpec
type RepeatSpec struct {
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Name        string        `json:"name,omitempty"`
	Repeat      *Repeat       `json:"repeat"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Spec        interface{}   `json:"spec"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// Resolve Defines how scales, axes, and legends from different specs should be combined. Resolve is a mapping from `scale`, `axis`, and `legend` to a mapping from channels to resolutions.
type Resolve struct {
	Axis   *AxisResolveMap   `json:"axis,omitempty"`
	Legend *LegendResolveMap `json:"legend,omitempty"`
	Scale  *ScaleResolveMap  `json:"scale,omitempty"`
}

// Scale
type Scale struct {
	Base         float64     `json:"base,omitempty"`
	Clamp        bool        `json:"clamp,omitempty"`
	Domain       interface{} `json:"domain,omitempty"`
	Exponent     float64     `json:"exponent,omitempty"`
	Interpolate  interface{} `json:"interpolate,omitempty"`
	Nice         interface{} `json:"nice,omitempty"`
	Padding      float64     `json:"padding,omitempty"`
	PaddingInner float64     `json:"paddingInner,omitempty"`
	PaddingOuter float64     `json:"paddingOuter,omitempty"`
	Range        interface{} `json:"range,omitempty"`
	RangeStep    interface{} `json:"rangeStep,omitempty"`
	Round        bool        `json:"round,omitempty"`
	Scheme       interface{} `json:"scheme,omitempty"`
	Type         interface{} `json:"type,omitempty"`
	Zero         bool        `json:"zero,omitempty"`
}

// ScaleConfig
type ScaleConfig struct {
	BandPaddingInner      float64     `json:"bandPaddingInner,omitempty"`
	BandPaddingOuter      float64     `json:"bandPaddingOuter,omitempty"`
	Clamp                 bool        `json:"clamp,omitempty"`
	ContinuousPadding     float64     `json:"continuousPadding,omitempty"`
	MaxBandSize           float64     `json:"maxBandSize,omitempty"`
	MaxFontSize           float64     `json:"maxFontSize,omitempty"`
	MaxOpacity            float64     `json:"maxOpacity,omitempty"`
	MaxSize               float64     `json:"maxSize,omitempty"`
	MaxStrokeWidth        float64     `json:"maxStrokeWidth,omitempty"`
	MinBandSize           float64     `json:"minBandSize,omitempty"`
	MinFontSize           float64     `json:"minFontSize,omitempty"`
	MinOpacity            float64     `json:"minOpacity,omitempty"`
	MinSize               float64     `json:"minSize,omitempty"`
	MinStrokeWidth        float64     `json:"minStrokeWidth,omitempty"`
	PointPadding          float64     `json:"pointPadding,omitempty"`
	RangeStep             interface{} `json:"rangeStep,omitempty"`
	Round                 bool        `json:"round,omitempty"`
	TextXRangeStep        float64     `json:"textXRangeStep,omitempty"`
	UseUnaggregatedDomain bool        `json:"useUnaggregatedDomain,omitempty"`
}

// ScaleResolveMap
type ScaleResolveMap struct {
	Color   interface{} `json:"color,omitempty"`
	Opacity interface{} `json:"opacity,omitempty"`
	Shape   interface{} `json:"shape,omitempty"`
	Size    interface{} `json:"size,omitempty"`
	X       interface{} `json:"x,omitempty"`
	Y       interface{} `json:"y,omitempty"`
}

// SchemeParams
type SchemeParams struct {
	Extent []float64 `json:"extent,omitempty"`
	Name   string    `json:"name"`
}

// SelectionAnd
type SelectionAnd struct {
	And []interface{} `json:"and"`
}

// SelectionConfig
type SelectionConfig struct {
	Interval *IntervalSelectionConfig `json:"interval,omitempty"`
	Multi    *MultiSelectionConfig    `json:"multi,omitempty"`
	Single   *SingleSelectionConfig   `json:"single,omitempty"`
}

// SelectionFilter
type SelectionFilter struct {
	Selection interface{} `json:"selection"`
}

// SelectionNot
type SelectionNot struct {
	Not interface{} `json:"not"`
}

// SelectionOr
type SelectionOr struct {
	Or []interface{} `json:"or"`
}

// SingleSelection
type SingleSelection struct {
	Bind      interface{}   `json:"bind,omitempty"`
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Nearest   bool          `json:"nearest,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
	Type      string        `json:"type"`
}

// SingleSelectionConfig
type SingleSelectionConfig struct {
	Bind      interface{}   `json:"bind,omitempty"`
	Empty     string        `json:"empty,omitempty"`
	Encodings []interface{} `json:"encodings,omitempty"`
	Fields    []string      `json:"fields,omitempty"`
	Nearest   bool          `json:"nearest,omitempty"`
	On        interface{}   `json:"on,omitempty"`
	Resolve   interface{}   `json:"resolve,omitempty"`
}

// SortField
type SortField struct {
	Field interface{} `json:"field,omitempty"`
	Op    interface{} `json:"op"`
	Order interface{} `json:"order,omitempty"`
}

// TextConfig
type TextConfig struct {
	Align            interface{} `json:"align,omitempty"`
	Angle            float64     `json:"angle,omitempty"`
	Baseline         interface{} `json:"baseline,omitempty"`
	Color            string      `json:"color,omitempty"`
	Dx               float64     `json:"dx,omitempty"`
	Dy               float64     `json:"dy,omitempty"`
	Fill             string      `json:"fill,omitempty"`
	FillOpacity      float64     `json:"fillOpacity,omitempty"`
	Filled           bool        `json:"filled,omitempty"`
	Font             string      `json:"font,omitempty"`
	FontSize         float64     `json:"fontSize,omitempty"`
	FontStyle        interface{} `json:"fontStyle,omitempty"`
	FontWeight       interface{} `json:"fontWeight,omitempty"`
	Interpolate      interface{} `json:"interpolate,omitempty"`
	Limit            float64     `json:"limit,omitempty"`
	Opacity          float64     `json:"opacity,omitempty"`
	Orient           interface{} `json:"orient,omitempty"`
	Radius           float64     `json:"radius,omitempty"`
	Shape            string      `json:"shape,omitempty"`
	ShortTimeLabels  bool        `json:"shortTimeLabels,omitempty"`
	Size             float64     `json:"size,omitempty"`
	Stroke           string      `json:"stroke,omitempty"`
	StrokeDash       []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64     `json:"strokeWidth,omitempty"`
	Tension          float64     `json:"tension,omitempty"`
	Text             string      `json:"text,omitempty"`
	Theta            float64     `json:"theta,omitempty"`
}

// TextFieldDefWithCondition A FieldDef with Condition<ValueDef>
// {
//    condition: {value: ...},
//    field: ...,
//    ...
// }
type TextFieldDefWithCondition struct {
	Aggregate interface{} `json:"aggregate,omitempty"`
	Bin       interface{} `json:"bin,omitempty"`
	Condition interface{} `json:"condition,omitempty"`
	Field     interface{} `json:"field,omitempty"`
	Format    string      `json:"format,omitempty"`
	TimeUnit  interface{} `json:"timeUnit,omitempty"`
	Type      interface{} `json:"type"`
}

// TextValueDefWithCondition A ValueDef with Condition<ValueDef | FieldDef>
// {
//    condition: {field: ...} | {value: ...},
//    value: ...,
// }
type TextValueDefWithCondition struct {
	Condition interface{} `json:"condition,omitempty"`
	Value     interface{} `json:"value,omitempty"`
}

// TickConfig
type TickConfig struct {
	Align            interface{} `json:"align,omitempty"`
	Angle            float64     `json:"angle,omitempty"`
	BandSize         float64     `json:"bandSize,omitempty"`
	Baseline         interface{} `json:"baseline,omitempty"`
	Color            string      `json:"color,omitempty"`
	Dx               float64     `json:"dx,omitempty"`
	Dy               float64     `json:"dy,omitempty"`
	Fill             string      `json:"fill,omitempty"`
	FillOpacity      float64     `json:"fillOpacity,omitempty"`
	Filled           bool        `json:"filled,omitempty"`
	Font             string      `json:"font,omitempty"`
	FontSize         float64     `json:"fontSize,omitempty"`
	FontStyle        interface{} `json:"fontStyle,omitempty"`
	FontWeight       interface{} `json:"fontWeight,omitempty"`
	Interpolate      interface{} `json:"interpolate,omitempty"`
	Limit            float64     `json:"limit,omitempty"`
	Opacity          float64     `json:"opacity,omitempty"`
	Orient           interface{} `json:"orient,omitempty"`
	Radius           float64     `json:"radius,omitempty"`
	Shape            string      `json:"shape,omitempty"`
	Size             float64     `json:"size,omitempty"`
	Stroke           string      `json:"stroke,omitempty"`
	StrokeDash       []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64     `json:"strokeWidth,omitempty"`
	Tension          float64     `json:"tension,omitempty"`
	Text             string      `json:"text,omitempty"`
	Theta            float64     `json:"theta,omitempty"`
	Thickness        float64     `json:"thickness,omitempty"`
}

// TimeUnitTransform
type TimeUnitTransform struct {
	As       string      `json:"as"`
	Field    string      `json:"field"`
	TimeUnit interface{} `json:"timeUnit"`
}

// TitleParams
type TitleParams struct {
	Anchor interface{} `json:"anchor,omitempty"`
	Offset float64     `json:"offset,omitempty"`
	Orient interface{} `json:"orient,omitempty"`
	Style  interface{} `json:"style,omitempty"`
	Text   string      `json:"text"`
}

// TopLevelFacetSpec
type TopLevelFacetSpec struct {
	Autosize    interface{}   `json:"autosize,omitempty"`
	Background  string        `json:"background,omitempty"`
	Config      *Config       `json:"config,omitempty"`
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Facet       *FacetMapping `json:"facet"`
	Name        string        `json:"name,omitempty"`
	Padding     interface{}   `json:"padding,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Schema      string        `json:"$schema,omitempty"`
	Spec        interface{}   `json:"spec"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// TopLevelFacetedUnitSpec
type TopLevelFacetedUnitSpec struct {
	Autosize    interface{}            `json:"autosize,omitempty"`
	Background  string                 `json:"background,omitempty"`
	Config      *Config                `json:"config,omitempty"`
	Data        interface{}            `json:"data,omitempty"`
	Description string                 `json:"description,omitempty"`
	Encoding    *EncodingWithFacet     `json:"encoding"`
	Height      float64                `json:"height,omitempty"`
	Mark        interface{}            `json:"mark"`
	Name        string                 `json:"name,omitempty"`
	Padding     interface{}            `json:"padding,omitempty"`
	Schema      string                 `json:"$schema,omitempty"`
	Selection   map[string]interface{} `json:"selection,omitempty"`
	Title       interface{}            `json:"title,omitempty"`
	Transform   []interface{}          `json:"transform,omitempty"`
	Width       float64                `json:"width,omitempty"`
}

// TopLevelHConcatSpec
type TopLevelHConcatSpec struct {
	Autosize    interface{}   `json:"autosize,omitempty"`
	Background  string        `json:"background,omitempty"`
	Config      *Config       `json:"config,omitempty"`
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Hconcat     []interface{} `json:"hconcat"`
	Name        string        `json:"name,omitempty"`
	Padding     interface{}   `json:"padding,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Schema      string        `json:"$schema,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// TopLevelLayerSpec
type TopLevelLayerSpec struct {
	Autosize    interface{}   `json:"autosize,omitempty"`
	Background  string        `json:"background,omitempty"`
	Config      *Config       `json:"config,omitempty"`
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Height      float64       `json:"height,omitempty"`
	Layer       []interface{} `json:"layer"`
	Name        string        `json:"name,omitempty"`
	Padding     interface{}   `json:"padding,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Schema      string        `json:"$schema,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
	Width       float64       `json:"width,omitempty"`
}

// TopLevelRepeatSpec
type TopLevelRepeatSpec struct {
	Autosize    interface{}   `json:"autosize,omitempty"`
	Background  string        `json:"background,omitempty"`
	Config      *Config       `json:"config,omitempty"`
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Name        string        `json:"name,omitempty"`
	Padding     interface{}   `json:"padding,omitempty"`
	Repeat      *Repeat       `json:"repeat"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Schema      string        `json:"$schema,omitempty"`
	Spec        interface{}   `json:"spec"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
}

// TopLevelVConcatSpec
type TopLevelVConcatSpec struct {
	Autosize    interface{}   `json:"autosize,omitempty"`
	Background  string        `json:"background,omitempty"`
	Config      *Config       `json:"config,omitempty"`
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Name        string        `json:"name,omitempty"`
	Padding     interface{}   `json:"padding,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Schema      string        `json:"$schema,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
	Vconcat     []interface{} `json:"vconcat"`
}

// TopoDataFormat
type TopoDataFormat struct {
	Feature string      `json:"feature,omitempty"`
	Mesh    string      `json:"mesh,omitempty"`
	Parse   interface{} `json:"parse,omitempty"`
	Type    string      `json:"type,omitempty"`
}

// UrlData
type UrlData struct {
	Format interface{} `json:"format,omitempty"`
	Url    string      `json:"url"`
}

// VConcatSpec
type VConcatSpec struct {
	Data        interface{}   `json:"data,omitempty"`
	Description string        `json:"description,omitempty"`
	Name        string        `json:"name,omitempty"`
	Resolve     *Resolve      `json:"resolve,omitempty"`
	Title       interface{}   `json:"title,omitempty"`
	Transform   []interface{} `json:"transform,omitempty"`
	Vconcat     []interface{} `json:"vconcat"`
}

// ValueDef Definition object for a constant value of an encoding channel.
type ValueDef struct {
	Value interface{} `json:"value"`
}

// VgAxisConfig
type VgAxisConfig struct {
	BandPosition    float64     `json:"bandPosition,omitempty"`
	Domain          bool        `json:"domain,omitempty"`
	DomainColor     string      `json:"domainColor,omitempty"`
	DomainWidth     float64     `json:"domainWidth,omitempty"`
	Grid            bool        `json:"grid,omitempty"`
	GridColor       string      `json:"gridColor,omitempty"`
	GridDash        []float64   `json:"gridDash,omitempty"`
	GridOpacity     float64     `json:"gridOpacity,omitempty"`
	GridWidth       float64     `json:"gridWidth,omitempty"`
	LabelAngle      float64     `json:"labelAngle,omitempty"`
	LabelBound      interface{} `json:"labelBound,omitempty"`
	LabelColor      string      `json:"labelColor,omitempty"`
	LabelFlush      interface{} `json:"labelFlush,omitempty"`
	LabelFont       string      `json:"labelFont,omitempty"`
	LabelFontSize   float64     `json:"labelFontSize,omitempty"`
	LabelLimit      float64     `json:"labelLimit,omitempty"`
	LabelOverlap    interface{} `json:"labelOverlap,omitempty"`
	LabelPadding    float64     `json:"labelPadding,omitempty"`
	Labels          bool        `json:"labels,omitempty"`
	MaxExtent       float64     `json:"maxExtent,omitempty"`
	MinExtent       float64     `json:"minExtent,omitempty"`
	TickColor       string      `json:"tickColor,omitempty"`
	TickRound       bool        `json:"tickRound,omitempty"`
	TickSize        float64     `json:"tickSize,omitempty"`
	TickWidth       float64     `json:"tickWidth,omitempty"`
	Ticks           bool        `json:"ticks,omitempty"`
	TitleAlign      string      `json:"titleAlign,omitempty"`
	TitleAngle      float64     `json:"titleAngle,omitempty"`
	TitleBaseline   string      `json:"titleBaseline,omitempty"`
	TitleColor      string      `json:"titleColor,omitempty"`
	TitleFont       string      `json:"titleFont,omitempty"`
	TitleFontSize   float64     `json:"titleFontSize,omitempty"`
	TitleFontWeight interface{} `json:"titleFontWeight,omitempty"`
	TitleLimit      float64     `json:"titleLimit,omitempty"`
	TitleMaxLength  float64     `json:"titleMaxLength,omitempty"`
	TitlePadding    float64     `json:"titlePadding,omitempty"`
	TitleX          float64     `json:"titleX,omitempty"`
	TitleY          float64     `json:"titleY,omitempty"`
}

// VgCheckboxBinding
type VgCheckboxBinding struct {
	Element string `json:"element,omitempty"`
	Input   string `json:"input"`
}

// VgGenericBinding
type VgGenericBinding struct {
	Element string `json:"element,omitempty"`
	Input   string `json:"input"`
}

// VgMarkConfig
type VgMarkConfig struct {
	Align            interface{} `json:"align,omitempty"`
	Angle            float64     `json:"angle,omitempty"`
	Baseline         interface{} `json:"baseline,omitempty"`
	Dx               float64     `json:"dx,omitempty"`
	Dy               float64     `json:"dy,omitempty"`
	Fill             string      `json:"fill,omitempty"`
	FillOpacity      float64     `json:"fillOpacity,omitempty"`
	Font             string      `json:"font,omitempty"`
	FontSize         float64     `json:"fontSize,omitempty"`
	FontStyle        interface{} `json:"fontStyle,omitempty"`
	FontWeight       interface{} `json:"fontWeight,omitempty"`
	Interpolate      interface{} `json:"interpolate,omitempty"`
	Limit            float64     `json:"limit,omitempty"`
	Opacity          float64     `json:"opacity,omitempty"`
	Orient           interface{} `json:"orient,omitempty"`
	Radius           float64     `json:"radius,omitempty"`
	Shape            string      `json:"shape,omitempty"`
	Size             float64     `json:"size,omitempty"`
	Stroke           string      `json:"stroke,omitempty"`
	StrokeDash       []float64   `json:"strokeDash,omitempty"`
	StrokeDashOffset float64     `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64     `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64     `json:"strokeWidth,omitempty"`
	Tension          float64     `json:"tension,omitempty"`
	Text             string      `json:"text,omitempty"`
	Theta            float64     `json:"theta,omitempty"`
}

// VgRadioBinding
type VgRadioBinding struct {
	Element string   `json:"element,omitempty"`
	Input   string   `json:"input"`
	Options []string `json:"options"`
}

// VgRangeBinding
type VgRangeBinding struct {
	Element string  `json:"element,omitempty"`
	Input   string  `json:"input"`
	Max     float64 `json:"max,omitempty"`
	Min     float64 `json:"min,omitempty"`
	Step    float64 `json:"step,omitempty"`
}

// VgScheme
type VgScheme struct {
	Count  float64   `json:"count,omitempty"`
	Extent []float64 `json:"extent,omitempty"`
	Scheme string    `json:"scheme"`
}

// VgSelectBinding
type VgSelectBinding struct {
	Element string   `json:"element,omitempty"`
	Input   string   `json:"input"`
	Options []string `json:"options"`
}

// VgTitleConfig
type VgTitleConfig struct {
	Anchor     interface{} `json:"anchor,omitempty"`
	Angle      float64     `json:"angle,omitempty"`
	Baseline   interface{} `json:"baseline,omitempty"`
	Color      string      `json:"color,omitempty"`
	Font       string      `json:"font,omitempty"`
	FontSize   float64     `json:"fontSize,omitempty"`
	FontWeight interface{} `json:"fontWeight,omitempty"`
	Limit      float64     `json:"limit,omitempty"`
	Offset     float64     `json:"offset,omitempty"`
	Orient     interface{} `json:"orient,omitempty"`
}

// ViewConfig
type ViewConfig struct {
	Clip             bool      `json:"clip,omitempty"`
	Fill             string    `json:"fill,omitempty"`
	FillOpacity      float64   `json:"fillOpacity,omitempty"`
	Height           float64   `json:"height,omitempty"`
	Stroke           string    `json:"stroke,omitempty"`
	StrokeDash       []float64 `json:"strokeDash,omitempty"`
	StrokeDashOffset float64   `json:"strokeDashOffset,omitempty"`
	StrokeOpacity    float64   `json:"strokeOpacity,omitempty"`
	StrokeWidth      float64   `json:"strokeWidth,omitempty"`
	Width            float64   `json:"width,omitempty"`
}

@morangorin
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That is great. This is definitely good enough to start experimenting. Thank you very much.

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@a-h @morangorin