public Builder clearGamSlateId() {
        bitField0_ = (bitField0_ & ~0x00000002);
        gamSlateId_ = 0L;
        onChanged();
        return this;
      }
<pre>
Output only. The identifier generated for the slate by GAM.
</pre>

<code>int64 gam_slate_id = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return This builder for chaining.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/Slate.java