Supported values are
block which is annotated,
text which is annotated and transcribed, and
group which is used for organizing other features in complex projects.
It will return multiline text with line breaks. Rich formatting is not supported at this time. Examples include words, lines, dates, table data, form data.
Examples include images, barcodes, news columns, tables, table rows, etc.
For organizing other features in large tasks. Groups are only used in the UI when we are doing the labeling. They are not returned in the response.