code: func (c *MTurk) AssociateQualificationWithWorker(input *AssociateQualificationWithWorkerInput) (*AssociateQualificationWithWorkerOutput, error) {
  	req, out := c.AssociateQualificationWithWorkerRequest(input)
  	return out, req.Send()
  }
docs: // AssociateQualificationWithWorker API operation for Amazon Mechanical Turk.
  //
  // The AssociateQualificationWithWorker operation gives a Worker a Qualification.
  // AssociateQualificationWithWorker does not require that the Worker submit
  // a Qualification request. It gives the Qualification directly to the Worker.
  //
  // You can only assign a Qualification of a Qualification type that you created
  // (using the CreateQualificationType operation).
  //
  // Note: AssociateQualificationWithWorker does not affect any pending Qualification
  // requests for the Qualification by the Worker. If you assign a Qualification
  // to a Worker, then later grant a Qualification request made by the Worker,
  // the granting of the request may modify the Qualification score. To resolve
  // a pending Qualification request without affecting the Qualification the Worker
  // already has, reject the request with the RejectQualificationRequest operation.
  //
  // Returns awserr.Error for service API and SDK errors. Use runtime type assertions
  // with awserr.Error's Code and Message methods to get detailed information about
  // the error.
  //
  // See the AWS API reference guide for Amazon Mechanical Turk's
  // API operation AssociateQualificationWithWorker for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeServiceFault "ServiceFault"
  //   Amazon Mechanical Turk is temporarily unable to process your request. Try
  //   your call again.
  //
  //   * ErrCodeRequestError "RequestError"
  //   Your request is invalid.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/mturk-requester-2017-01-17/AssociateQualificationWithWorker