Function patch_seq_map_get 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn patch_seq_map_get(stack: Stack) -> Stack

Get a value from the map by key

Stack effect: ( Map key – value Bool )

Returns (value true) if found, or (0 false) if not found. Errors are values, not crashes. Panics only for internal bugs (invalid key type, non-Map value).

Safety

Stack must have a hashable key on top and a Map below