docs: def set_copyright(self, copyright_):
          """Sets the copyright.
  
          arg:    copyright (string): the new copyright
          raise:  InvalidArgument - ``copyright`` is invalid
          raise:  NoAccess - ``Metadata.isReadOnly()`` is ``true``
          raise:  NullArgument - ``copyright`` is ``null``
          *compliance: mandatory -- This method must be implemented.*
  
          """
          # Implemented from template for osid.repository.AssetForm.set_title_template
          self._my_map['copyright'] = self._get_display_text(copyright_, self.get_copyright_metadata())