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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_script_extension_property(value, is_bytes=False):
 """Get `SCX` property."""


    obj = unidata.ascii_script_extensions if is_bytes else unidata.unicode_script_extensions

    if value.startswith('^'):
        negated = value[1:]
        value = '^' + unidata.unicode_alias['script'].get(negated, negated)
    else:
        value = unidata.unicode_alias['script'].get(value, value)

    return obj[value]