parameters: (self)
return_statement: return self._filler_pipeline_key.name()
docstring: Returns the pipeline ID that filled this slot's value.
  
      Returns:
        A string that is the pipeline ID.
  
      Raises:
        SlotNotFilledError if the value hasn't been filled yet.
docstring_summary: Returns the pipeline ID that filled this slot's value.
docstring_tokens: Returns the pipeline ID that filled this slot s value .
function: def filler(self):
      """Returns the pipeline ID that filled this slot's value.
  
      Returns:
        A string that is the pipeline ID.
  
      Raises:
        SlotNotFilledError if the value hasn't been filled yet.
      """
      if not self.filled:
        raise SlotNotFilledError('Slot with name "%s", key "%s" not yet filled.'
                                 % (self.name, self.key))
      return self._filler_pipeline_key.name()
function_tokens: def filler ( self ) : if not self . filled : raise SlotNotFilledError ( 'Slot with name "%s", key "%s" not yet filled.' % ( self . name , self . key ) ) return self . _filler_pipeline_key . name ( )