Progress Object

The current progress of an Experiment.

Fields

Key	Type	Value
`first_observation`	`Observation`	The first reported Observation.
`last_observation`	`Observation`	The most recently reported Observation.
`observation_budget_consumed`	`float`	The cost accumulated over all Observations reported for this experiment.
`observation_count`	`int`	The number of Observations reported for this experiment.

These fields should no longer be used because there are better alternatives.

Key	Type	Value
`best_observation`	`Observation`	The Observation with the best reported value. Prefer to use the best_assignments endpoint.