def METHOD_NAME(scope, field_value):
    """ List of values to search for; `field_value`, plus possibly variants on it """
    if scope in ["congressional_code", "county_code"]:
        try:
            # Congressional and county codes are not uniform and contain multiple variables
            # In the location table Ex congressional code (01): '01', '1.0', '1'
            return [str(int(field_value)), field_value, str(float(field_value))]
        except ValueError:
            # if filter causes an error when casting to a float or integer
            # Example: 'ZZ' for an area without a congressional code
            pass
    return [field_value]