code: func (c *Target) DetachFromTarget(sessionId string, targetId string) (*gcdmessage.ChromeResponse, error) {
  	var v TargetDetachFromTargetParams
  	v.SessionId = sessionId
  	v.TargetId = targetId
  	return c.DetachFromTargetWithParams(&v)
  }
docs: // DetachFromTarget - Detaches session with given id.
  // sessionId - Session to detach.
  // targetId - Deprecated.