code: public S pollInterval(long poll, TemporalUnit pollUnit) {
          Preconditions.checkArgument(0 <= poll);
          this.poll = Duration.of(poll, pollUnit);
          return self();
      }
docs: Set the index information polling interval.  {@link #call()} waits
  at least this long between repeated attempts to read schema information
  and determine whether the index has reached its target state.