# Functions
IsExponentialBackoff returns true if an error returned from GoroutineMap indicates that a new operation can not be started because exponentialBackOffOnError is enabled and a previous operation with the same operation failed within the durationBeforeRetry period.
NewExponentialBackoffError returns a new instance of ExponentialBackoff error.
# Structs
ExponentialBackoff contains the last occurrence of an error and the duration that retries are not permitted.