/usr/local/lib/swipl/library/predicate_options.pl
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      • predicate_options.pl -- Access and analyse predicate options
        • predicate_options/3
        • assert_predicate_options/4
        • current_option_arg/2
        • current_predicate_option/3
        • check_predicate_option/3
        • current_predicate_options/3
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 check_predicate_option(:PI, +Arg, +Option) is det
Verify predicate options at runtime. Similar to current_predicate_option/3, but intended to support runtime checking.
Errors
- existence_error(option, OptionName) if the option is not supported by PI.
- type_error(Type, Value) if the option is supported but the value does not match the option type. See must_be/2.