Script section is not working in pipeline script in shared library

Question

My Jenkins file:

@Library("shared@dev")_
Start()

My Start.groovy pipeline script:

def call() {
    pipeline {
        agent any
            stages {
                stage("init") {
                    steps {
                        script {
                            asd = 'asd'
                        }
                    }
                }
            }   
        }   
    }

I got error:

hudson.remoting.ProxyException: groovy.lang.MissingMethodException: No signature of method: script.call() is applicable for argument types: (org.jenkinsci.plugins.workflow.cps.CpsClosure2) values: [org.jenkinsci.plugins.workflow.cps.CpsClosure2@295c00c8] Possible solutions: wait(), any(), wait(long), main([Ljava.lang.String;), any(groovy.lang.Closure), each(groovy.lang.Closure)