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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 removc(item, inset):
 """ Remove an item from a character set. http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/removc_c.html :param item: Item to be removed. :type item: str :param inset: Set to be updated. :type inset: spiceypy.utils.support_types.SpiceCell """

    assert isinstance(inset, stypes.SpiceCell)
    assert inset.dtype == 0
    item = stypes.stringToCharP(item)
    libspice.removc_c(item, ctypes.byref(inset))