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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def script(vm_):
    '''
    Return the script deployment object
    '''
    script_name = config.get_cloud_config_value('script', vm_, __opts__)
    if not script_name:
        script_name = 'bootstrap-salt'

    return salt.utils.cloud.os_script(
        script_name,
        vm_,
        __opts__,
        salt.utils.cloud.salt_config_to_yaml(
            salt.utils.cloud.minion_config(__opts__, vm_)
        )
    )