Deno.UnsafeFnPointer
UNSTABLE: Unsafe and new API, beware!
An unsafe pointer to a function, for calling functions that are not present as symbols.
class UnsafeFnPointer<Fn extends ForeignFunction> { }
definition: Fn;
pointer: UnsafePointer;
call(...args: StaticForeignFunctionParameters<Fn["parameters"]>): ConditionalAsync<Fn["nonblocking"], StaticForeignFunctionResult<Fn["result"]>>;