Function wasmtime_component_linker_instance_add_instance 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasmtime_component_linker_instance_add_instance<'a>(
    linker_instance: &'a mut wasmtime_component_linker_instance_t<'a>,
    name: *const u8,
    name_len: usize,
    linker_instance_out: &mut *mut wasmtime_component_linker_instance_t<'a>,
) -> Option<Box<wasmtime_error_t>>