code: func (c *ChangeRequest) GetOrderDirOk() (string, bool) {
  	if c == nil || c.OrderDir == nil {
  		return "", false
  	}
  	return *c.OrderDir, true
  }
docs: // GetOrderDirOk returns a tuple with the OrderDir field if it's non-nil, zero value otherwise
  // and a boolean to check if the value has been set.