private com.google.protobuf.MapField<java.lang.String, java.lang.String>
        internalGetMutableAdTagMacros() {
      if (adTagMacros_ == null) {
        adTagMacros_ =
            com.google.protobuf.MapField.newMapField(AdTagMacrosDefaultEntryHolder.defaultEntry);
      }
      if (!adTagMacros_.isMutable()) {
        adTagMacros_ = adTagMacros_.copy();
      }
      bitField0_ |= 0x00000004;
      onChanged();
      return adTagMacros_;
    }
<pre>
Output only. The URI to play the live session's ad-stitched stream.
</pre>

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

@param value The bytes for playUri 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