Update ALL SoapUI REST TestSteps in A given TestSuite with a specified new request body

/*
 * For a chosen REST Service POST request:
 * 
 * -> Manually specify a new request body
 * -> Update the request of ALL (POST) REST TestRequest TestSteps contained in ALL TestCases of a chosen TestSuite
 */

//Set TestSuite to update here:

def testSuiteNameToUpdate = "TestSuite 2"

//Set new request body here:

def requestBodyToCopy = """{
  "apiPostId" : "125",
  "data" : [ {
    "name" : "email",
    "value" : "[email protected]"
  }, {
    "name" : "data_source",
    "value" : "Outlet"
  }, {
    "name" : "date_of_record",
    "value" : "2016-04-18T00:05:57Z"
  }, {
    "name" : "marketing_opt_in_mens",
    "value" : "1"
  }, {
    "name" : "marketing_opt_in_womens",
    "value" : "1"
  }, {
    "name" : "marketing_opt_in_kids",
    "value" : "0"
  }, {
    "name" : "email_sp3_status_id",
    "value" : "100"
  } ]
}"""

//Get chosen TestSuite

def project = testRunner.getTestCase().getProject()
def testSuiteToUpdate = project.getTestSuiteByName(testSuiteNameToUpdate)

//Select ALL TestCases

def testCasesToUpdate = testSuiteToUpdate.getTestCaseList()

def updateCount=0
//For each TestCase
testCasesToUpdate.each{testCase ->

	log.info "--Checking TestCase: $testCase.name"
	//Select ALL RESTTestRequest TestSteps
	def testStepsToUpdate = testCase.getTestStepList()
	//For each TestStep
	testStepsToUpdate.each{testStep ->
		log.info testStep.name
		//Is it a POST request?
		if (testStep instanceof com.eviware.soapui.impl.wsdl.teststeps.RestTestRequestStep && 
			testStep.restMethod.method.toString()=="POST"){
			log.info "Updating request of TestStep $testStep.name ..."
			testStep.getHttpRequest().setRequestContent(requestBodyToCopy)
			updateCount++
		}
		
	}

}
return "Total of $updateCount REST TestRequest TestSteps have been updated."

If it is a groovy script, then line # 42, leads to compilation error.
It should be one of the below:
def project = testRunner.getTestCase().getTestSuite().getProject() or
def project = testRunner.testCase.testSuite.project or
def project = context.testCase.testSuite.project