Function _check_calibration

mne/preprocessing/eyetracking/utils.py:11–25

(
    calibration, want_keys=("screen_size", "screen_resolution", "screen_distance")
)

def _check_calibration(
    calibration, want_keys=("screen_size", "screen_resolution", "screen_distance")
):
    missing_keys = []
    for key in want_keys:
        if calibration.get(key, None) is None:
            missing_keys.append(key)

    if missing_keys:
        raise KeyError(
            "Calibration object must have the following keys with valid values:"
            f" {', '.join(missing_keys)}"
        )
    else:
        return True


def get_screen_visual_angle(calibration):