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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 _normalize_django_header_name(header):
 """Unmunge header names modified by Django."""

        # Remove HTTP_ prefix.
        new_header = header.rpartition('HTTP_')[2]
        # Camel case and replace _ with -
        new_header = '-'.join(
            x.capitalize() for x in new_header.split('_'))

        return new_header