code: def map_grounding(stmts_in, **kwargs):
      
      from indra.preassembler.grounding_mapper import GroundingMapper
      from indra.preassembler.grounding_mapper import gm as grounding_map
      from indra.preassembler.grounding_mapper import \
          default_agent_map as agent_map
      logger.info('Mapping grounding on %d statements...' % len(stmts_in))
      do_rename = kwargs.get('do_rename')
      gm = kwargs.get('grounding_map', grounding_map)
      if do_rename is None:
          do_rename = True
      gm = GroundingMapper(gm, agent_map, use_deft=kwargs.get('use_deft', True))
      stmts_out = gm.map_agents(stmts_in, do_rename=do_rename)
      dump_pkl = kwargs.get('save')
      if dump_pkl:
          dump_statements(stmts_out, dump_pkl)
      return stmts_out
docs: Map grounding using the GroundingMapper.
  
      Parameters
      ----------
      stmts_in : list[indra.statements.Statement]
          A list of statements to map.
      do_rename : Optional[bool]
          If True, Agents are renamed based on their mapped grounding.
      grounding_map : Optional[dict]
          A user supplied grounding map which maps a string to a
          dictionary of database IDs (in the format used by Agents'
          db_refs).
      use_deft : Optional[bool]
          If True, Deft will be attempted to be used for acronym disambiguation.
          Default: True
      save : Optional[str]
          The name of a pickle file to save the results (stmts_out) into.
  
      Returns
      -------
      stmts_out : list[indra.statements.Statement]
          A list of mapped statements.