code: public ConditionFactory pollInterval(Duration pollInterval) {
          return new ConditionFactory(alias, timeoutConstraint, new FixedPollInterval(pollInterval), pollDelay, catchUncaughtExceptions,
                  exceptionsIgnorer, conditionEvaluationListener, executorLifecycle);
      }
docs: Specify the polling interval Awaitility will use for this await
  statement. This means the frequency in which the condition is checked for
  completion.
  <p>
  Note that the poll delay will be automatically set as to the same value
  as the interval (if using a {@link FixedPollInterval}) unless it's specified explicitly using
  {@link #pollDelay(Duration)}, {@link #pollDelay(long, TimeUnit)} or
  {@link org.awaitility.core.ConditionFactory#pollDelay(org.awaitility.Duration)}.
  </p>
  
  @param pollInterval the poll interval
  @return the condition factory