Method HasBindCallback

src/include/duckdb/function/table_function.hpp:382–384

	              table_function_init_global_t init_global = nullptr, table_function_init_local_t init_local = nullptr);

	bool HasBindCallback() const {
		return bind != nullptr;
	}
	table_function_bind_t GetBindCallback() const {
		return bind;
	}