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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 replacing_symlink(source, link_name):
 """Create symlink that overwrites any existing target. """

    with make_tmp_name(link_name) as tmp_link_name:
        os.symlink(source, tmp_link_name)
        replace_file_or_dir(link_name, tmp_link_name)