node {
 stage('Preparation') { 
     properties([
         parameters([
             string(
                 defaultValue: 'h7557h',
                 description: 'Kaggle username',
                 name: 'KAGGLE_USERNAME',
                 trim: false
             ),
             password(
                 defaultValue: '',
                 description: 'Kaggle token',
                 name: 'KAGGLE_KEY'
             ),
			 string(
				 defaultValue: '10',
				 description: 'Cutoff', 
				 name: 'CUTOFF'
             )
         ])
     ])
 }
 
 stage('Checkout') {
      steps {
        script {
           git credentialsId: 'jenkins-user-github', url: 'https://git.wmi.amu.edu.pl/s478855/ium_478855.git'
           sh "ls -lart ./*" 
           sh "git branch -a"
           sh "git checkout master"
          }
       }
    }
}