ReadonlyexistsA boolean representing if the flag exists or not. For ease of use and
deployment, asking for a flag by any name will return a FeatureFlag
interface, even if the flag was not found to exist. However this property
may be checked to determine if the flag was actually resolved to a known
flag name.
ReadonlyisA boolean representing flag eligibility; will be true if the current
contact is eligible for the flag.
ReadonlyvariablesA variables associated with the flag, if any. Will be null if no data
is associated with the flag, or if the flag does not exist.
An interface representing the eligibility status of a flag, and optional variables associated with the flag.