pub type WhiskerModuleCallback = extern "C" fn(user_data: *mut c_void, result: *const WhiskerValueRaw);Expand description
Callback type for whisker_bridge_invoke_module_async. The
result pointer is borrowed for the duration of the call only —
the bridge frees the underlying allocations once the callback
returns, so closures that need to retain the value must copy
into Rust-owned storage via the whisker-runtime wrapper.