Changes to Declare a metadata column

added the non-success response with the status 502

added the optional property error to the response with the 400 status

added the optional property error/code to the response with the 401 status

added the optional property error/code to the response with the 403 status

added the optional property error/code to the response with the 409 status

added the optional property error/details to the response with the 401 status

added the optional property error/details to the response with the 403 status

added the optional property error/details to the response with the 409 status

added the optional property error/request_id to the response with the 401 status

added the optional property error/request_id to the response with the 403 status

added the optional property error/request_id to the response with the 409 status

added the optional property error/retryable to the response with the 401 status

added the optional property error/retryable to the response with the 403 status

added the optional property error/retryable to the response with the 409 status

added the new integer_list enum value to the type response property for the response status 201

added the new label_list enum value to the index_type response property for the response status 201

added the new string_list enum value to the type response property for the response status 201

added the new integer_list enum value to the request property type

added the new label_list enum value to the request property index_type

added the new string_list enum value to the request property type

endpoint added