#[unsafe(no_mangle)]pub extern "C" fn wasm_externtype_as_memorytype(
et: &wasm_externtype_t,
) -> Option<&wasm_memorytype_t>#[unsafe(no_mangle)]pub extern "C" fn wasm_externtype_as_memorytype(
et: &wasm_externtype_t,
) -> Option<&wasm_memorytype_t>