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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 _configure(configuration_details):
 """Adds alias to shell config."""

    path = Path(configuration_details.path).expanduser()
    with path.open('a') as shell_config:
        shell_config.write(u'\n')
        shell_config.write(configuration_details.content)
        shell_config.write(u'\n')