code: public ServerBuilder http2MaxStreamsPerConnection(long http2MaxStreamsPerConnection) {
          checkArgument(http2MaxStreamsPerConnection > 0 &&
                        http2MaxStreamsPerConnection <= 0xFFFFFFFFL,
                        "http2MaxStreamsPerConnection: %s (expected: a positive 32-bit unsigned integer)",
                        http2MaxStreamsPerConnection);
          this.http2MaxStreamsPerConnection = http2MaxStreamsPerConnection;
          return this;
      }
docs: Sets the maximum number of concurrent streams per HTTP/2 connection. Unset means there is
  no limit on the number of concurrent streams. Note, this differs from {@link #maxNumConnections()},
  which is the maximum number of HTTP/2 connections themselves, not the streams that are
  multiplexed over each.