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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 remove_collation(coltype: TypeEngine) -> TypeEngine: """ Returns a copy of the specific column type with any ``COLLATION`` removed. """

    if not getattr(coltype, 'collation', None):
        return coltype
    newcoltype = copy.copy(coltype)
    newcoltype.collation = None
    return newcoltype