def make_proximity_sensor(radius, occlusion):
    """
    Returns string representation of the proximity sensor configuration.
    For example: "proximity radius=5 occlusion_enabled=False"

    Args:
        radius (int or float)
        occlusion (bool): True if consider occlusion
    Returns:
        str: String representation of the proximity sensor configuration.
    """
    radiustr = "radius=%s" % str(radius)
    occstr = "occlusion_enabled=%s" % str(occlusion)
    return "proximity %s %s" % (radiustr, occstr)