code: def get_related_flat(self, content_id, min_strength=None):
          '''Follow coreference relationships to get full related graph.
  
          This differs from ``get_related_coref_relationships`` in that
          it returns a flat list of all identifiers found through the
          coreference layer of indirection.
  
          :rtype: list of identifiers
          '''
          rel_id_to_idents = self.get_related_coref_relationships(
              content_id, min_strength=min_strength)
          flat_list = []
          for val in rel_id_to_idents.values():
              flat_list.extend(val)
          return flat_lisf get_related_flat(self, content_id, min_strength=None):
          '''Follow coreference relationships to get full related graph.
  
          This differs from ``get_related_coref_relationships`` in that
          it returns a flat list of all identifiers found through the
          coreference layer of indirection.
  
          :rtype: list of identifiers
          '''
          rel_id_to_idents = self.get_related_coref_relationships(
              content_id, min_strength=min_strength)
          flat_list = []
          for val in rel_id_to_idents.values():
              flat_list.extend(val)
          return flat_list
docs: Follow coreference relationships to get full related graph.
  
          This differs from ``get_related_coref_relationships`` in that
          it returns a flat list of all identifiers found through the
          coreference layer of indirection.
  
          :rtype: list of identifiers