from typing import Any, Callable

class Module:
    ...

class Runtime:
    ...

    def load(self, wasm_bin: Module) -> None:
        ...

    def get_memory(self, memid: int) -> memoryview:
        ...

    def find_function(self, name: str) -> Callable[[Any], Any]:
        ...

class Environment:
    def new_runtime(self, mem_size: int) -> Runtime:
        ...

    def parse_module(self, wasm_bin: bytes) -> Module:
        ...