fn instance_of(
    caller: Caller<'_, WasmiInstanceEnv>,
    component_id_ptr: u32,
    component_id_len: u32,
    package_address_ptr: u32,
    package_address_len: u32,
    blueprint_name_ptr: u32,
    blueprint_name_len: u32
) -> Result<u32, InvokeError<WasmRuntimeError>>