code: func (cli *OpsGenieHeartbeatClient) Delete(req heartbeat.DeleteHeartbeatRequest) (*heartbeat.DeleteHeartbeatResponse, error) {
  	var response heartbeat.HeartbeatMetaResponseV2
  
  	err := cli.sendDeleteRequest(&req, &response)
  
  	if err != nil {
  		return nil, err
  	}
  
  	var result heartbeat.DeleteHeartbeatResponse
  	result.Status = "Deleted"
  	result.Code = 200
  	return &result, nil
  }
docs: // Delete method deletes an heartbeat from OpsGenie.