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"type": "sa_car_counter"- always has the same value"sensor_id"- sensor hardware ID in hex format"timestamp"- Unix-timestamp of event"counter"- number of detected cars. The maximum value is greater than 2 billion. This should be enough for most cases."errors"- list of errors or null. Supported error list can be different for different firmwares"msg_version"- data protocol version"trace_id"- message trace ID which can be used for development and debugging
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