code: def create(self, project, object_id, attached_file, **attrs):
          
          attrs.update({'project': project, 'object_id': object_id})
  
          if isinstance(attached_file, file):
              attachment = attached_file
          elif isinstance(attached_file, six.string_types):
              try:
                  attachment = open(attached_file, 'rb')
              except IOError:
                  raise exceptions.TaigaException(
                      "Attachment must be a IOBase or a path to an existing file"
                  )
          else:
              raise exceptions.TaigaException(
                  "Attachment must be a IOBase or a path to an existing file"
              )
  
          return self._new_resource(
              files={'attached_file': attachment},
              payload=attrs
          )
docs: Create a new :class:`Attachment`.
  
          :param project: :class:`Project` id
          :param object_id: id of the current object
          :param ref: :class:`Task` reference
          :param attached_file: file path that you want to upload
          :param attrs: optional attributes for the :class:`Attachment`