private void buildPartial0(
            com.google.cloud.vertexai.api.SlackSource.SlackChannels.SlackChannel result) {
          int from_bitField0_ = bitField0_;
          if (((from_bitField0_ & 0x00000001) != 0)) {
            result.channelId_ = channelId_;
          }
          int to_bitField0_ = 0;
          if (((from_bitField0_ & 0x00000002) != 0)) {
            result.startTime_ = startTimeBuilder_ == null ? startTime_ : startTimeBuilder_.build();
            to_bitField0_ |= 0x00000001;
          }
          if (((from_bitField0_ & 0x00000004) != 0)) {
            result.endTime_ = endTimeBuilder_ == null ? endTime_ : endTimeBuilder_.build();
            to_bitField0_ |= 0x00000002;
          }
          result.bitField0_ |= to_bitField0_;
        }
<pre>
SlackChannel contains the Slack channel ID and the time range to import.
</pre>

Protobuf type {@code google.cloud.vertexai.v1.SlackSource.SlackChannels.SlackChannel}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SlackSource.java