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camera

list() function

Return an array of available camera device IDs.

Returns: An array of camera IDs, or undefined if no cameras are available.

open(id) function

Open a camera device with the given ID.

id: The camera ID to open.

Returns: A camera object on success, or throws an error if the camera cannot be opened.

name(id) function

Return the name of the camera with the given ID.

id: The camera ID to query.

Returns: A string with the camera's name, or throws an error if the name cannot be retrieved.

position(id) function

Return the physical position of the camera with the given ID.

id: The camera ID to query.

Returns: A string indicating the camera position ("unknown", "front", or "back").