multi-line shell script

1.yaml

launch:
    parameters:
        - ip:
            description: static ip address
            default: ""
    steps:
        - grow:
            action: provisionAmazonVm
            parameters:
                phase: provision
                roleName: dummy
            output:
                ips: ips
        - test:
            action: execrun
            parameters:
                roles: [dummy]
                phase: run
                precedingPhases: [provision]
                command: 
                    - python
                    - "-c"
                    - |
                         for i in range(0,3):
                              print str(i) + ") Hi there!"
            output:
                out: stdout
    return:
        out:
            value: ${out}
        ips: 
            value: ${ips}
                
destroy:
    steps:
        - destroy:
            action: compute.shrink-all