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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 copyto_emitter(target, source, env):
 """ changes the path of the source to be under the target (which are assumed to be directories. """

    n_target = []

    for t in target:
        n_target = n_target + [t.File( str( s ) ) for s in source]

    return (n_target, source)