docs: def get_provider_links_metadata(self):
          """Gets the metadata for the provider chain.
  
          return: (osid.Metadata) - metadata for the provider chain
          *compliance: mandatory -- This method must be implemented.*
  
          """
          # Implemented from template for osid.learning.ActivityForm.get_assets_metadata_template
          metadata = dict(self._mdata['provider_links'])
          metadata.update({'existing_provider_links_values': self._my_map['providerLinkIds']})
          return Metadata(**metadata)