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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 _get_stripped_marker(marker, strip_func):
 """Build a new marker which is cleaned according to `strip_func`"""


    if not marker:
        return None
    marker = _ensure_marker(marker)
    elements = marker._markers
    strip_func(elements)
    if elements:
        return marker
    return None