from typing import cast
from polywrap_manifest import AnyWrapManifest
from polywrap_core import FileReader, Invoker
from polywrap_wasm import WasmWrapper

file_reader: FileReader = ... # any valid file_reader, pass NotImplemented for mocking
wasm_module: bytes = bytes("<wrapper wasm module bytes read from file or http>")
wrap_manifest: AnyWrapManifest = ...
wrapper = WasmWrapper(file_reader, wasm_module, wrap_manifest)
invoker: Invoker = ... # any valid invoker, mostly PolywrapClient

message = "hey"
args = {"arg": message}
options: InvokeOptions[UriPackageOrWrapper] = InvokeOptions(
  uri=Uri.from_str("fs/./build"), method="simpleMethod", args=args
)
result = await wrapper.invoke(options, invoker)
assert result.encoded is True
assert msgpack_decode(cast(bytes, result.result)) == message