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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 wkhtmltopdf_args_mapping(data):
 """ fix our names to wkhtmltopdf's args """

    mapping = {
        'cookies': 'cookie',
        'custom-headers': 'custom-header',
        'run-scripts': 'run-script'
    }

    return {mapping.get(k, k): v for k, v in data.items()}