diff --git a/README.md b/README.md
index 77630ee..9f13335 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,22 @@
 
 ### NodeRepr
 
+#### Constructors
+
+##### new NodeRepr()
+
+> **new NodeRepr**(): [`NodeRepr`](README.md#noderepr)
+
+The node object, cann't be instantiated in javascript. So call the constructor will throw an error.
+
+###### Returns
+
+[`NodeRepr`](README.md#noderepr)
+
+###### Defined in
+
+[index.d.ts:137](https://github.com/umijs/niddle/blob/main/index.d.ts#L137)
+
 #### Methods
 
 ##### append()
@@ -30,7 +46,7 @@ The child node will be remove from its previous position.
 
 ###### Defined in
 
-[index.d.ts:14](https://github.com/umijs/niddle/blob/main/index.d.ts#L14)
+[index.d.ts:18](https://github.com/umijs/niddle/blob/main/index.d.ts#L18)
 
 ##### appendSequence()
 
@@ -52,7 +68,7 @@ These children nodes will be remove from their previous position.
 
 ###### Defined in
 
-[index.d.ts:20](https://github.com/umijs/niddle/blob/main/index.d.ts#L20)
+[index.d.ts:25](https://github.com/umijs/niddle/blob/main/index.d.ts#L25)
 
 ##### clone()
 
@@ -66,7 +82,7 @@ Clone this node to a new instance, not clone its descendants.
 
 ###### Defined in
 
-[index.d.ts:90](https://github.com/umijs/niddle/blob/main/index.d.ts#L90)
+[index.d.ts:142](https://github.com/umijs/niddle/blob/main/index.d.ts#L142)
 
 ##### cloneRecursive()
 
@@ -80,21 +96,7 @@ Clone this node to a new instance, including its all descendants.
 
 ###### Defined in
 
-[index.d.ts:92](https://github.com/umijs/niddle/blob/main/index.d.ts#L92)
-
-##### constructor()
-
-> **constructor**(): `void`
-
-The node object, cann't be instantiated in javascript. So call the constructor will throw an error
-
-###### Returns
-
-`void`
-
-###### Defined in
-
-[index.d.ts:96](https://github.com/umijs/niddle/blob/main/index.d.ts#L96)
+[index.d.ts:147](https://github.com/umijs/niddle/blob/main/index.d.ts#L147)
 
 ##### getAttribute()
 
@@ -114,7 +116,7 @@ Get attribute value of this node by given name.
 
 ###### Defined in
 
-[index.d.ts:74](https://github.com/umijs/niddle/blob/main/index.d.ts#L74)
+[index.d.ts:112](https://github.com/umijs/niddle/blob/main/index.d.ts#L112)
 
 ##### getAttributes()
 
@@ -128,7 +130,7 @@ Get attributes K-V object of this node.
 
 ###### Defined in
 
-[index.d.ts:76](https://github.com/umijs/niddle/blob/main/index.d.ts#L76)
+[index.d.ts:117](https://github.com/umijs/niddle/blob/main/index.d.ts#L117)
 
 ##### getChildren()
 
@@ -142,13 +144,13 @@ Get all children nodes of this node.
 
 ###### Defined in
 
-[index.d.ts:72](https://github.com/umijs/niddle/blob/main/index.d.ts#L72)
+[index.d.ts:107](https://github.com/umijs/niddle/blob/main/index.d.ts#L107)
 
 ##### innerHtml()
 
 > **innerHtml**(): `string`
 
-Get the serialized html of this node, only including its all descendants;.
+Get the serialized html of this node, only including its all descendants.
 
 ###### Returns
 
@@ -156,7 +158,7 @@ Get the serialized html of this node, only including its all descendants;.
 
 ###### Defined in
 
-[index.d.ts:80](https://github.com/umijs/niddle/blob/main/index.d.ts#L80)
+[index.d.ts:127](https://github.com/umijs/niddle/blob/main/index.d.ts#L127)
 
 ##### insertAfter()
 
@@ -178,7 +180,7 @@ The sibling node will be remove from its previous position.
 
 ###### Defined in
 
-[index.d.ts:38](https://github.com/umijs/niddle/blob/main/index.d.ts#L38)
+[index.d.ts:46](https://github.com/umijs/niddle/blob/main/index.d.ts#L46)
 
 ##### insertBefore()
 
@@ -200,7 +202,7 @@ The sibling node will be remove from its previous position.
 
 ###### Defined in
 
-[index.d.ts:50](https://github.com/umijs/niddle/blob/main/index.d.ts#L50)
+[index.d.ts:60](https://github.com/umijs/niddle/blob/main/index.d.ts#L60)
 
 ##### insertSequenceAfter()
 
@@ -222,7 +224,7 @@ These sibling nodes will be remove from their previous position.
 
 ###### Defined in
 
-[index.d.ts:44](https://github.com/umijs/niddle/blob/main/index.d.ts#L44)
+[index.d.ts:53](https://github.com/umijs/niddle/blob/main/index.d.ts#L53)
 
 ##### insertSequenceBefore()
 
@@ -244,13 +246,13 @@ These sibling nodes will be remove from their previous position.
 
 ###### Defined in
 
-[index.d.ts:56](https://github.com/umijs/niddle/blob/main/index.d.ts#L56)
+[index.d.ts:67](https://github.com/umijs/niddle/blob/main/index.d.ts#L67)
 
 ##### outerHtml()
 
 > **outerHtml**(): `string`
 
-Get the serialized html of this node, including its all descendants and itelf;.
+Get the serialized html of this node, including its all descendants and itelf.
 
 ###### Returns
 
@@ -258,7 +260,7 @@ Get the serialized html of this node, including its all descendants and itelf;.
 
 ###### Defined in
 
-[index.d.ts:78](https://github.com/umijs/niddle/blob/main/index.d.ts#L78)
+[index.d.ts:122](https://github.com/umijs/niddle/blob/main/index.d.ts#L122)
 
 ##### prepend()
 
@@ -280,7 +282,7 @@ The child node will be remove from its previous position.
 
 ###### Defined in
 
-[index.d.ts:26](https://github.com/umijs/niddle/blob/main/index.d.ts#L26)
+[index.d.ts:32](https://github.com/umijs/niddle/blob/main/index.d.ts#L32)
 
 ##### prependSequence()
 
@@ -302,7 +304,7 @@ These children nodes will be remove from their previous position.
 
 ###### Defined in
 
-[index.d.ts:32](https://github.com/umijs/niddle/blob/main/index.d.ts#L32)
+[index.d.ts:39](https://github.com/umijs/niddle/blob/main/index.d.ts#L39)
 
 ##### remove()
 
@@ -316,13 +318,13 @@ Remove a node from its parent and siblings. Children are not affected.
 
 ###### Defined in
 
-[index.d.ts:58](https://github.com/umijs/niddle/blob/main/index.d.ts#L58)
+[index.d.ts:72](https://github.com/umijs/niddle/blob/main/index.d.ts#L72)
 
 ##### removeAllAttributes()
 
 > **removeAllAttributes**(): `void`
 
-Remove all attributes of this node
+Remove all attributes of this node.
 
 ###### Returns
 
@@ -330,13 +332,13 @@ Remove all attributes of this node
 
 ###### Defined in
 
-[index.d.ts:66](https://github.com/umijs/niddle/blob/main/index.d.ts#L66)
+[index.d.ts:92](https://github.com/umijs/niddle/blob/main/index.d.ts#L92)
 
 ##### removeAttribute()
 
 > **removeAttribute**(`name`): `void`
 
-Remove an attribute of this node by name
+Remove an attribute of this node by name.
 
 ###### Parameters
 
@@ -350,7 +352,7 @@ Remove an attribute of this node by name
 
 ###### Defined in
 
-[index.d.ts:64](https://github.com/umijs/niddle/blob/main/index.d.ts#L64)
+[index.d.ts:87](https://github.com/umijs/niddle/blob/main/index.d.ts#L87)
 
 ##### select()
 
@@ -372,7 +374,7 @@ Select the the fist node that match the given css selector, like document.queryS
 
 ###### Defined in
 
-[index.d.ts:68](https://github.com/umijs/niddle/blob/main/index.d.ts#L68)
+[index.d.ts:97](https://github.com/umijs/niddle/blob/main/index.d.ts#L97)
 
 ###### select(selectors)
 
@@ -390,7 +392,7 @@ Select the the fist node that match the given css selector, like document.queryS
 
 ###### Defined in
 
-[index.d.ts:97](https://github.com/umijs/niddle/blob/main/index.d.ts#L97)
+[index.d.ts:150](https://github.com/umijs/niddle/blob/main/index.d.ts#L150)
 
 ###### select(selectors)
 
@@ -408,7 +410,7 @@ Select the the fist node that match the given css selector, like document.queryS
 
 ###### Defined in
 
-[index.d.ts:98](https://github.com/umijs/niddle/blob/main/index.d.ts#L98)
+[index.d.ts:151](https://github.com/umijs/niddle/blob/main/index.d.ts#L151)
 
 ###### select(selectors)
 
@@ -426,7 +428,7 @@ Select the the fist node that match the given css selector, like document.queryS
 
 ###### Defined in
 
-[index.d.ts:99](https://github.com/umijs/niddle/blob/main/index.d.ts#L99)
+[index.d.ts:152](https://github.com/umijs/niddle/blob/main/index.d.ts#L152)
 
 ##### selectAll()
 
@@ -446,7 +448,7 @@ Select all nodes that match the given css selector, like document.querySelectorA
 
 ###### Defined in
 
-[index.d.ts:70](https://github.com/umijs/niddle/blob/main/index.d.ts#L70)
+[index.d.ts:102](https://github.com/umijs/niddle/blob/main/index.d.ts#L102)
 
 ##### setAttribute()
 
@@ -467,13 +469,13 @@ Assign an attribute K-V to this node
 
 ###### Defined in
 
-[index.d.ts:60](https://github.com/umijs/niddle/blob/main/index.d.ts#L60)
+[index.d.ts:77](https://github.com/umijs/niddle/blob/main/index.d.ts#L77)
 
 ##### setAttributes()
 
 > **setAttributes**(`attrs`): `void`
 
-Assign attributes K-V object to this node
+Assign attributes K-V object to this node.
 
 ###### Parameters
 
@@ -487,13 +489,13 @@ Assign attributes K-V object to this node
 
 ###### Defined in
 
-[index.d.ts:62](https://github.com/umijs/niddle/blob/main/index.d.ts#L62)
+[index.d.ts:82](https://github.com/umijs/niddle/blob/main/index.d.ts#L82)
 
 ##### text()
 
 > **text**(): `string`
 
-Get all text nodes content of this node, including its all descendants and itelf;.
+Get all text nodes content of this node, including its all descendants and itelf.
 
 ###### Returns
 
@@ -501,7 +503,7 @@ Get all text nodes content of this node, including its all descendants and itelf
 
 ###### Defined in
 
-[index.d.ts:82](https://github.com/umijs/niddle/blob/main/index.d.ts#L82)
+[index.d.ts:132](https://github.com/umijs/niddle/blob/main/index.d.ts#L132)
 
 ## Functions
 
@@ -523,4 +525,4 @@ Parse string input to a html tree, return the root node.
 
 #### Defined in
 
-[index.d.ts:7](https://github.com/umijs/niddle/blob/main/index.d.ts#L7)
+[index.d.ts:10](https://github.com/umijs/niddle/blob/main/index.d.ts#L10)
diff --git a/crates/niddle_napi/src/lib.rs b/crates/niddle_napi/src/lib.rs
index 63d8923..6356f99 100644
--- a/crates/niddle_napi/src/lib.rs
+++ b/crates/niddle_napi/src/lib.rs
@@ -13,6 +13,7 @@ mod serializer;
 mod node_repr;
 
 /// Parse string input to a html tree, return the root node.
+///
 #[napi]
 pub fn parse(html: String) -> NodeRepr {
   let parser = parse_html();
diff --git a/crates/niddle_napi/src/node_repr/mod.rs b/crates/niddle_napi/src/node_repr/mod.rs
index 9073748..54faa61 100644
--- a/crates/niddle_napi/src/node_repr/mod.rs
+++ b/crates/niddle_napi/src/node_repr/mod.rs
@@ -20,8 +20,7 @@ impl From<NodeRef> for NodeRepr {
 
 #[napi]
 impl NodeRepr {
-  ///
-  /// @private
+  /// The node object, cann't be instantiated in javascript. So call the constructor will throw an error.
   ///
   #[napi(constructor, ts_return_type = "void")]
   pub fn constructor() {
@@ -32,6 +31,7 @@ impl NodeRepr {
 #[napi]
 impl NodeRepr {
   /// Clone this node to a new instance, not clone its descendants.
+  ///
   #[napi(js_name = "clone")]
   pub fn clone_self_only(&self) -> NodeRepr {
     let new_node_ref = NodeRef::new(self.0.data().clone());
@@ -39,6 +39,7 @@ impl NodeRepr {
   }
 
   /// Clone this node to a new instance, including its all descendants.
+  ///
   #[napi]
   pub fn clone_recursive(&self) -> NodeRepr {
     NodeRepr::from(clone_node_ref_recursive(&self.0))
diff --git a/crates/niddle_napi/src/node_repr/modify.rs b/crates/niddle_napi/src/node_repr/modify.rs
index ee7f79c..5ab5753 100644
--- a/crates/niddle_napi/src/node_repr/modify.rs
+++ b/crates/niddle_napi/src/node_repr/modify.rs
@@ -8,6 +8,7 @@ impl NodeRepr {
   /// Append a child node to this node, after existing children.
   ///
   /// The child node will be remove from its previous position.
+  ///
   #[napi]
   pub fn append(&self, new_child: &NodeRepr) {
     self.0.append(new_child.0.clone())
@@ -16,6 +17,7 @@ impl NodeRepr {
   /// Append some children nodes to this node by order, after existing children.
   ///
   /// These children nodes will be remove from their previous position.
+  ///
   #[napi]
   pub fn append_sequence(&self, new_children: Vec<&NodeRepr>) {
     new_children
@@ -26,6 +28,7 @@ impl NodeRepr {
   /// Prepend a child node to this node, before existing children.
   ///
   /// The child node will be remove from its previous position.
+  ///
   #[napi]
   pub fn prepend(&self, new_child: &NodeRepr) {
     self.0.prepend(new_child.0.clone())
@@ -34,6 +37,7 @@ impl NodeRepr {
   /// Prepend some children nodes to this node by order, before existing children.
   ///
   /// These children nodes will be remove from their previous position.
+  ///
   #[napi]
   pub fn prepend_sequence(&self, new_children: Vec<&NodeRepr>) {
     if !new_children.is_empty() {
@@ -49,6 +53,7 @@ impl NodeRepr {
   /// Insert a new sibling after this node.
   ///
   /// The sibling node will be remove from its previous position.
+  ///
   #[napi]
   pub fn insert_after(&self, new_sibling: &NodeRepr) {
     self.0.insert_after(new_sibling.0.clone())
@@ -57,6 +62,7 @@ impl NodeRepr {
   /// Insert some siblings after this node.
   ///
   /// These sibling nodes will be remove from their previous position.
+  ///
   #[napi]
   pub fn insert_sequence_after(&self, new_siblings: Vec<&NodeRepr>) {
     if !new_siblings.is_empty() {
@@ -76,6 +82,7 @@ impl NodeRepr {
   /// Insert a new sibling before this node.
   ///
   /// The sibling node will be remove from its previous position.
+  ///
   #[napi]
   pub fn insert_before(&self, new_sibling: &NodeRepr) {
     self.0.insert_before(new_sibling.0.clone())
@@ -84,6 +91,7 @@ impl NodeRepr {
   /// Insert some siblings before this node.
   ///
   /// These sibling nodes will be remove from their previous position.
+  ///
   #[napi]
   pub fn insert_sequence_before(&self, new_siblings: Vec<&NodeRepr>) {
     if !new_siblings.is_empty() {
@@ -97,12 +105,14 @@ impl NodeRepr {
   }
 
   /// Remove a node from its parent and siblings. Children are not affected.
+  ///
   #[napi]
   pub fn remove(&self) {
     self.0.detach()
   }
 
   /// Assign an attribute K-V to this node
+  ///
   #[napi]
   pub fn set_attribute(&self, name: String, value: String) {
     if let Some(ele) = self.0.as_element() {
@@ -113,7 +123,8 @@ impl NodeRepr {
     }
   }
 
-  /// Assign attributes K-V object to this node
+  /// Assign attributes K-V object to this node.
+  ///
   #[napi]
   pub fn set_attributes(&self, attrs: IndexMap<String, String>) {
     if let Some(ele) = self.0.as_element() {
@@ -126,7 +137,8 @@ impl NodeRepr {
     }
   }
 
-  /// Remove an attribute of this node by name
+  /// Remove an attribute of this node by name.
+  ///
   #[napi]
   pub fn remove_attribute(&self, name: String) {
     if let Some(ele) = self.0.as_element() {
@@ -134,7 +146,8 @@ impl NodeRepr {
     }
   }
 
-  /// Remove all attributes of this node
+  ///Remove all attributes of this node.
+  ///
   #[napi]
   pub fn remove_all_attributes(&self) {
     if let Some(ele) = self.0.as_element() {
diff --git a/crates/niddle_napi/src/node_repr/query.rs b/crates/niddle_napi/src/node_repr/query.rs
index c381a8c..e74708b 100644
--- a/crates/niddle_napi/src/node_repr/query.rs
+++ b/crates/niddle_napi/src/node_repr/query.rs
@@ -9,12 +9,14 @@ use super::NodeRepr;
 #[napi]
 impl NodeRepr {
   /// Select the the fist node that match the given css selector, like document.querySelector.
+  ///
   #[napi]
   pub fn select(&self, selectors: String) -> Option<NodeRepr> {
     self.0.select_first(&selectors).ok().map(Into::into)
   }
 
   /// Select all nodes that match the given css selector, like document.querySelectorAll.
+  ///
   #[napi]
   pub fn select_all(&self, selectors: String) -> Vec<NodeRepr> {
     self
@@ -24,12 +26,14 @@ impl NodeRepr {
   }
 
   /// Get all children nodes of this node.
+  ///
   #[napi]
   pub fn get_children(&self) -> Vec<NodeRepr> {
     self.0.children().map(Into::into).collect()
   }
 
   /// Get attribute value of this node by given name.
+  ///
   #[napi]
   pub fn get_attribute(&self, name: String) -> Option<String> {
     self
@@ -39,6 +43,7 @@ impl NodeRepr {
   }
 
   /// Get attributes K-V object of this node.
+  ///
   #[napi]
   pub fn get_attributes(&self) -> IndexMap<String, String> {
     self.0.as_element().map_or_else(IndexMap::new, |e| {
@@ -54,7 +59,8 @@ impl NodeRepr {
     })
   }
 
-  /// Get the serialized html of this node, including its all descendants and itelf;.
+  /// Get the serialized html of this node, including its all descendants and itelf.
+  ///
   #[napi]
   pub fn outer_html(&self) -> String {
     let mut u8_vec = Vec::new();
@@ -71,7 +77,8 @@ impl NodeRepr {
     unsafe { String::from_utf8_unchecked(u8_vec) }
   }
 
-  /// Get the serialized html of this node, only including its all descendants;.
+  /// Get the serialized html of this node, only including its all descendants.
+  ///
   #[napi]
   pub fn inner_html(&self) -> String {
     let mut buf = Vec::<u8>::new();
@@ -88,7 +95,8 @@ impl NodeRepr {
     unsafe { String::from_utf8_unchecked(buf) }
   }
 
-  /// Get all text nodes content of this node, including its all descendants and itelf;.
+  /// Get all text nodes content of this node, including its all descendants and itelf.
+  ///
   #[napi]
   pub fn text(&self) -> String {
     let mut buf = Vec::<u8>::new();
diff --git a/index.d.ts b/index.d.ts
index e7fc0a6..f50bdca 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -3,91 +3,151 @@
 
 /* auto-generated by NAPI-RS */
 
-/** Parse string input to a html tree, return the root node. */
+/**
+ * Parse string input to a html tree, return the root node.
+ *
+ */
 function parse(html: string): NodeRepr
 export declare class NodeRepr {
   /**
    * Append a child node to this node, after existing children.
    *
    * The child node will be remove from its previous position.
+   *
    */
   append(newChild: NodeRepr): void
   /**
    * Append some children nodes to this node by order, after existing children.
    *
    * These children nodes will be remove from their previous position.
+   *
    */
   appendSequence(newChildren: Array<NodeRepr>): void
   /**
    * Prepend a child node to this node, before existing children.
    *
    * The child node will be remove from its previous position.
+   *
    */
   prepend(newChild: NodeRepr): void
   /**
    * Prepend some children nodes to this node by order, before existing children.
    *
    * These children nodes will be remove from their previous position.
+   *
    */
   prependSequence(newChildren: Array<NodeRepr>): void
   /**
    * Insert a new sibling after this node.
    *
    * The sibling node will be remove from its previous position.
+   *
    */
   insertAfter(newSibling: NodeRepr): void
   /**
    * Insert some siblings after this node.
    *
    * These sibling nodes will be remove from their previous position.
+   *
    */
   insertSequenceAfter(newSiblings: Array<NodeRepr>): void
   /**
    * Insert a new sibling before this node.
    *
    * The sibling node will be remove from its previous position.
+   *
    */
   insertBefore(newSibling: NodeRepr): void
   /**
    * Insert some siblings before this node.
    *
    * These sibling nodes will be remove from their previous position.
+   *
    */
   insertSequenceBefore(newSiblings: Array<NodeRepr>): void
-  /** Remove a node from its parent and siblings. Children are not affected. */
+  /**
+   * Remove a node from its parent and siblings. Children are not affected.
+   *
+   */
   remove(): void
-  /** Assign an attribute K-V to this node */
+  /**
+   * Assign an attribute K-V to this node
+   *
+   */
   setAttribute(name: string, value: string): void
-  /** Assign attributes K-V object to this node */
+  /**
+   * Assign attributes K-V object to this node.
+   *
+   */
   setAttributes(attrs: Record<string, string>): void
-  /** Remove an attribute of this node by name */
+  /**
+   * Remove an attribute of this node by name.
+   *
+   */
   removeAttribute(name: string): void
-  /** Remove all attributes of this node */
+  /**
+   *Remove all attributes of this node.
+   *
+   */
   removeAllAttributes(): void
-  /** Select the the fist node that match the given css selector, like document.querySelector. */
+  /**
+   * Select the the fist node that match the given css selector, like document.querySelector.
+   *
+   */
   select(selectors: string): NodeRepr | null
-  /** Select all nodes that match the given css selector, like document.querySelectorAll. */
+  /**
+   * Select all nodes that match the given css selector, like document.querySelectorAll.
+   *
+   */
   selectAll(selectors: string): Array<NodeRepr>
-  /** Get all children nodes of this node. */
+  /**
+   * Get all children nodes of this node.
+   *
+   */
   getChildren(): Array<NodeRepr>
-  /** Get attribute value of this node by given name. */
+  /**
+   * Get attribute value of this node by given name.
+   *
+   */
   getAttribute(name: string): string | null
-  /** Get attributes K-V object of this node. */
+  /**
+   * Get attributes K-V object of this node.
+   *
+   */
   getAttributes(): Record<string, string>
-  /** Get the serialized html of this node, including its all descendants and itelf;. */
+  /**
+   * Get the serialized html of this node, including its all descendants and itelf.
+   *
+   */
   outerHtml(): string
-  /** Get the serialized html of this node, only including its all descendants;. */
+  /**
+   * Get the serialized html of this node, only including its all descendants.
+   *
+   */
   innerHtml(): string
-  /** Get all text nodes content of this node, including its all descendants and itelf;. */
-  text(): string
   /**
+   * Get all text nodes content of this node, including its all descendants and itelf.
    *
-   * @private
+   */
+  text(): string
+  /**
+   * The node object, cann't be instantiated in javascript. So call the constructor will throw an error.
    *
    */
   constructor(): void
-  /** Clone this node to a new instance, not clone its descendants. */
+  /**
+   * Clone this node to a new instance, not clone its descendants.
+   *
+   */
   clone(): NodeRepr
-  /** Clone this node to a new instance, including its all descendants. */
+  /**
+   * Clone this node to a new instance, including its all descendants.
+   *
+   */
   cloneRecursive(): NodeRepr
 }
+export declare interface NodeRepr {
+  select(selectors: "html"): NodeRepr;
+  select(selectors: "head"): NodeRepr;
+  select(selectors: "body"): NodeRepr;
+}
diff --git a/patch.d.ts b/patch.d.ts
index 01d61cb..df5ee81 100644
--- a/patch.d.ts
+++ b/patch.d.ts
@@ -1,6 +1,4 @@
 export declare interface NodeRepr {
-  /** The node object, cann't be instantiated in javascript. So call the constructor will throw an error */
-  constructor(): void;
   select(selectors: "html"): NodeRepr;
   select(selectors: "head"): NodeRepr;
   select(selectors: "body"): NodeRepr;