pub unsafe extern "system" fn create_api_layer_instance(
info: *const InstanceCreateInfo,
layer_info: *const ApiLayerCreateInfo,
instance: *mut Instance,
) -> Result
pub unsafe extern "system" fn create_api_layer_instance(
info: *const InstanceCreateInfo,
layer_info: *const ApiLayerCreateInfo,
instance: *mut Instance,
) -> Result