code: func (t *TileDefRequest) GetTextFilterOk() (string, bool) {
  	if t == nil || t.TextFilter == nil {
  		return "", false
  	}
  	return *t.TextFilter, true
  }
docs: // GetTextFilterOk returns a tuple with the TextFilter field if it's non-nil, zero value otherwise
  // and a boolean to check if the value has been set.