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// use std::sync::Arc;
// // use wasmer::{imports, Instance, Module, Store, ValueType};
// use wasmtime::{Engine, Linker, Store};
// use wasmtime_wasi::{
// preview1::{self, WasiP1Ctx},
// WasiCtxBuilder,
// };
// #[allow(dead_code)]
// pub async fn load_plugin() -> anyhow::Result<()> {
// let mut config = wasmtime::Config::new();
// config.wasm_reference_types(true);
// config.debug_info(false);
// config.async_support(true);
// let engine = Engine::new(&config)?;
// let wasi_ctx = WasiCtxBuilder::new()
// .inherit_stdio()
// .inherit_stdout()
// .build_p1();
// let mut linker: Linker<WasiP1Ctx> = Linker::new(&engine);
// preview1::add_to_linker_async(&mut linker, |t| t)?;
// let mut store = Store::new(&engine, wasi_ctx);
// let module = wasmtime::Module::from_binary(
// &engine,
// include_bytes!("../../../../mid-test/target/wasm32-wasip1/release/mid_test.wasm"),
// )?;
// // instance
// let instance = linker.instantiate_async(&mut store, &module).await?;
// let req_filter_fn = instance.get_func(&mut store, "on_request_filter").unwrap();
// let scope = wasmtime::RootScope::new(&mut store);
// let session = wasmtime::ExternRef::new(scope, Arc::new(SessionTest::new()))?;
// // call function with ref
// let mut ret: Vec<wasmtime::Val> = vec![wasmtime::Val::I32(0)];
// req_filter_fn
// .call_async(&mut store, &[session.into()], &mut ret)
// .await?;
// Ok(())
// }
// #[cfg(test)]
// mod tests {
// use super::*;
// #[tokio::test]
// async fn test_load_plugin() {
// load_plugin().await.unwrap();
// assert_eq!(1, 1)
// }
// }