pipeline {
    agent any

    stages {
        stage('Build') {
            steps { 
                echo 'Building...'
                // Your build steps here
            }
        }

        stage('Test') {
            parallel {
                stage('Unit Tests') {
                    steps {
                        echo 'Running unit tests...'
                        // Your unit test steps here
                    }
                }
                stage('Integration Tests') {
                    steps {
                        echo 'Running integration tests...'
                        // Your integration test steps here
                    }
                }
                stage('Additional Tests') {
                    steps {
                        script {
                            parallel(
                                'Nested Stage 1': {
                                    echo 'Running nested parallel stage 1...'
                                    // Your nested parallel stage 1 steps here
                                },
                                'Nested Stage 2': {
                                    echo 'Running nested parallel stage 2...'
                                    // Your nested parallel stage 2 steps here
                                }
                            )
                        }
                    }
                }
            }
        }

        stage('Deploy') {
            steps {
                echo 'Deploying...'
                snDevOpsChange changeRequestDetails: '{ "attributes": {"chg_model": "e55d0bfec343101035ae3f52c1d3ae49","standard_change_template"="563504cc47410200e90d87e8dee490e2"},"autoCloseChange": false}',changeStepTimeOut: 18000, pollingInterval: 60
                // Your deploy steps here
            }
        }
    }
}