wasm_instance_new, what's the role of **wasm_trap_t

[Hywan]

In the following code:

wasm-c-api/include/wasm.h

Lines 518 to 521 in 3a31b7e

	WASM_API_EXTERN own wasm_instance_t* wasm_instance_new(
	wasm_store_t*, const wasm_module_t*, const wasm_extern_vec_t* imports,
	own wasm_trap_t**
	);

I don't understand what's the role of the last **wasm_trap_t argument. Can someone explain it to me please :-)?

[Hywan]

Answered by @syrusakbary in the linked pull request. Closing.