ChartFieldSource

Discriminator field: kind Link to a data field or a special field type.

ChartFieldRef

kind:ref

Field	Type	Description
`id`	str *
`dataset_name`	str	The dataset name in which you need to find a field. If the chart is built from a single dataset, you may skip specifying its name.

kind:measure_names

No parameters

kind:measure_values

No parameters

CalcSpec