allow sending async commands to engine (#6342)

* start of async

Signed-off-by: Jess Frazelle <github@jessfraz.com>

check at end if the async commands completed

Signed-off-by: Jess Frazelle <github@jessfraz.com>

run at the end of inner_run

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set import as async

Signed-off-by: Jess Frazelle <github@jessfraz.com>

updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

add to the wasm side

Signed-off-by: Jess Frazelle <github@jessfraz.com>

updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

fmt

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* fire

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* flake

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* fixup for awaiting on import

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates

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* fix mock

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* fix mock

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* updates

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* fixes

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* add a test where we import then do a bunch of other stuff

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates

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* fixup to see

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* fixups

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* fix tests

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* updates

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* cross platform time

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* fixes

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* updates

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* updates

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* another appearance tests

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* new docs and tests

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* dont loop so tight

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* fixes

Signed-off-by: Jess Frazelle <github@jessfraz.com>

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>

rust/kcl-lib/src/lib.rs

@@ -109,7 +109,7 @@ pub mod exec {
 pub mod wasm_engine {
     pub use crate::{
         coredump::wasm::{CoreDumpManager, CoreDumper},
-        engine::conn_wasm::{EngineCommandManager, EngineConnection},
+        engine::conn_wasm::{EngineCommandManager, EngineConnection, ResponseContext},
         fs::wasm::{FileManager, FileSystemManager},
     };
 }