Function try_init_device 

pub fn try_init_device(
    setup: WgpuSetup,
    options: RuntimeOptions,
) -> Result<WgpuDevice, WgpuInitError>

Register an existing setup without changing its enabled GPU capabilities.

Uses AutoCompiler with WGSL fallback. Use try_init_device_with_api to require an explicit graphics API and its compiler support. The supplied device must enable the features required by the selected compiler, including native extensions when using SPIR-V or MSL. Registration does not validate every native requirement. Each call allocates a new runtime identity; repeated registration of the same handles is not detected. Register once, then clone the returned device.