private com.google.protobuf.MapField<java.lang.String, java.lang.String>
          internalGetTargetingParameters() {
        if (targetingParameters_ == null) {
          return com.google.protobuf.MapField.emptyMapField(
              TargetingParametersDefaultEntryHolder.defaultEntry);
        }
        return targetingParameters_;
      }
<pre>
Required. The stream ID generated by Ad Manager. This must be set if GAM
is being used for ads and the session uses client-side ad tracking.
</pre>

<code>string stream_id = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@param value The bytes for streamId to set.
@return This builder for chaining.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/LiveSession.java