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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_deployment(path, script, submap=None):
 """Return a ScriptDeployment from script with possible template substitutions."""


    if submap is None:
        submap = {}
    script = substitute(script, submap)
    return libcloud.compute.deployment.ScriptDeployment(script, path)