class ClocklessCobaltServiceInterface

NewAtTimePointLogger returns a new instance of a Logger object using the

customer_id and project_id based

on the registry provided in the config. If the project is not found, this

will return nullptr. If no registry was provided, this will crash.

system_data returns a pointer to the internal SystemDataInterface object.

This should only be used for updating the Experiment state or channel in the system data.

system_data_ref returns a reference to the internal SystemDataInterface

object. This should be used instead of system_data().

Generates aggregated observations for aggregation periods that have ended

before |timestamp| in the time zone associated with the metric.

Courtesy signal for Cobalt to begin a graceful shutdown.

Cobalt may be terminated before the shut down process is complete. The

amount of time before this occurs depends on caller. No metrics should be

logged after the shutdown signal is sent.