code: func (client *Client) GetServicePlan(servicePlanGUID string) (ServicePlan, Warnings, error) {
  	request, err := client.newHTTPRequest(requestOptions{
  		RequestName: internal.GetServicePlanRequest,
  		URIParams:   Params{"service_plan_guid": servicePlanGUID},
  	})
  	if err != nil {
  		return ServicePlan{}, nil, err
  	}
  
  	var servicePlan ServicePlan
  	response := cloudcontroller.Response{
  		DecodeJSONResponseInto: &servicePlan,
  	}
  
  	err = client.connection.Make(request, &response)
  	return servicePlan, response.Warnings, err
  }
docs: // GetServicePlan returns the service plan with the given GUID.