code: def files_comments_add(self, *, comment: str, file: str, **kwargs) -> SlackResponse:
          
          kwargs.update({"comment": comment, "file": file})
          return self.api_call("files.comments.add", json=kwargs)
docs: Add a comment to an existing file.
  
          Args:
              comment (str): The body of the comment.
                  e.g. 'Everyone should take a moment to read this file.'
              file (str): The file id. e.g. 'F1234467890'