modify this
						checkout([
							$class: 'GitSCM',
							userRemoteConfigs: [[url: BLAHBLAHBLAH]],
							branches: [[name: "${AUTOMATION_BRANCH}"]],
							extensions: [
								[$class: 'RelativeTargetDirectory', relativeTargetDir: automation_repo_name],
								[$class: 'ScmName', name: automation_repo_name],
								[$class: 'CleanBeforeCheckout'],
								[$class: 'CloneOption', timeout: 60],
								[$class: 'CheckoutOption', timeout: 60]
							]
						])

to something like this

						checkout([
							$class: 'GitSCM',
							userRemoteConfigs: [[credentialsId: 'buildat_ssh_credentials', url: BLAHBLAHBLAH]],
							branches: [[name: "${AUTOMATION_BRANCH}"]],
							extensions: [
								[$class: 'RelativeTargetDirectory', relativeTargetDir: automation_repo_name],
								[$class: 'ScmName', name: automation_repo_name],
								[$class: 'CleanBeforeCheckout'],
								[$class: 'CloneOption', timeout: 60],
								[$class: 'CheckoutOption', timeout: 60]
							]
						])

PLEASE DON'T COPY PASTE THIS, IT WON'T WORK