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vllm.ray.lazy_utils

is_in_ray_actor 

is_in_ray_actor()

Check if we are in a Ray actor.

Source code in vllm/ray/lazy_utils.py 
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def is_in_ray_actor():
    """Check if we are in a Ray actor."""

    try:
        import ray
        return (ray.is_initialized()
                and ray.get_runtime_context().get_actor_id() is not None)
    except ImportError:
        return False

is_ray_initialized 

is_ray_initialized()

Check if Ray is initialized.

Source code in vllm/ray/lazy_utils.py 
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def is_ray_initialized():
    """Check if Ray is initialized."""
    try:
        import ray
        return ray.is_initialized()
    except ImportError:
        return False