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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 _print_dot(targets, components, tasks):
 """ Deprecated function; use print_graph. Arguments targets - the targets explicitly requested components - full configuration for all components in a project """

    print("Warning: dot option is deprecated.  Use graph instead.", file=sys.stderr)
    _print_graph(targets, components, tasks)