def hc_consume(c) -> Union[Health, None]:
"""Get a health record from the kafka consumer if there is a new one."""
msg = c.poll(1.0)
if msg is None:
return
if msg.error():
print("Consumer error: {}".format(msg.error()))
return
health_record = Health.from_json(msg.value().decode("utf-8"))
c.commit()
print(f"Received health record {health_record}")
return health_record
