:sig
SharedUnit* unit_load(String file_name)

:params
file_name : unit source path
return value : native SharedUnit pointer (native runtime internals only)

:see
>ob
>unit_compile
>unit_info
>unit_call

:content
native-only internal API. `unit_load()` returns a process-local `SharedUnit*`, which is not a valid value across the wasm membrane and is not exposed to wasm units.

Use unit-facing APIs such as `unit_info()`, `unit_compile()`, `unit_call()`, `unit_render()`, or component helpers instead.

:example
// unit_load() is a native/internal loader; from a unit, use unit_compile()
// to make sure a unit is built, then unit_call()/unit_render() to invoke it.
print(unit_compile("examples/sample_unit.uce") ? "sample unit is loaded and ready" : "load failed", "\n");