code: def schema_key(s_id: str) -> SchemaKey:
      
  
      s_key = s_id.split(':')
      s_key.pop(1)  # take out indy-sdk schema marker: 2 marks indy-sdk schema id
  
      return SchemaKey(*s_key)
docs: Return schema key (namedtuple) convenience for schema identifier components.
  
      :param s_id: schema identifier
      :return: schema key (namedtuple) object