This API retrieves a list of document types enabled for your account.
The response contains a nested structure:

• The root object is data.
• Inside data, you will find an array called document.
• Each item in document represents a document type configuration, and contains a field called doc_type.

The doc_type field is the unique identifier (ID) for each document type.
You will need to reference this doc_type ID when performing actions such as uploading documents or configuring workflows.