code: def get_binary(self):
          
  
          content_disp = 'Content-Disposition: form-data; name="file"; filename="{}"'
  
          stream = io.BytesIO()
          stream.write(_string_to_binary('--{}'.format(self.boundary)))
          stream.write(_crlf())
          stream.write(_string_to_binary(content_disp.format(self.file_name)))
          stream.write(_crlf())
          stream.write(_crlf())
          stream.write(self.body)
          stream.write(_crlf())
          stream.write(_string_to_binary('--{}--'.format(self.boundary)))
          stream.write(_crlf())
  
          return stream.getvalue()
docs: Return a binary buffer containing the file content