def create_doc(doc, opts = {})
      data, _status_code, _headers = create_doc_with_http_info(doc, opts)
      return data
    end
def create_doc(doc, opts = {})
      data, _status_code, _headers = create_doc_with_http_info(doc, opts)
      return data
    end
Creates a document synchronously.
 @param doc The document to be created.
 @param [Hash] opts the optional parameters
 @return [String]