Passing arguments to class from Soapui groovy step

librarysample.groovy

//Define the class in library
class Mylibrary {
  def context
  def log
  
  //Shows the test case name
  def showDetails() {
    log.info context.testCase.name
  }
  
  //Sets a property value at given level. default is test case
  def setProperty(name, value, level='testcase'){
    switch(level){
      case 'project':
        context.testCase.testSuite.project.setPropertyValue(name, value.toString())
        break
      case 'suite':
        context.testCase.testSuite.setPropertyValue(name, value.toString())
        break
      default:
        context.testCase.setPropertyValue(name, value.toString())
        break
    }
  }
}

//Using the library in groovy script of test step
def mylib = new Mylibrary(context: context, log: log)
mylib.showDetails()
//Set property at suite level
mylib.setProperty('MY_SUITE_PROPERTY', 'myvalue', 'suite')
//set property at test case level, level is optional if need to set at testcase
mylib.setProperty('MY_TEST_PROPERTY', 'testValue')
//Set project property
mylib.setProperty('MY_PROJECT_PROPERTY', 'projectValue', 'project')

How to create a library with context, log variables and use them in methods. And how to call that library in groovy test step.