Non-nullable property 'FrequencyAmplitudes' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Nullable value type may be null.

Non-nullable field '_labels' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field '_data' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Possible null reference return.

Possible null reference return.

Possible null reference argument for parameter 'connectionString' in 'DbContextOptionsBuilder CosmosDbContextOptionsExtensions.UseCosmos(DbContextOptionsBuilder optionsBuilder, string connectionString, string databaseName, Action<CosmosDbContextOptionsBuilder>? cosmosOptionsAction = null)'.

Converting null literal or possible null value to non-nullable type.

Converting null literal or possible null value to non-nullable type.