public Builder setNetworkCodeBytes(com.google.protobuf.ByteString value) {
        if (value == null) {
          throw new NullPointerException();
        }
        checkByteStringIsUtf8(value);
        networkCode_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
<pre>
Required. Ad Manager network code to associate with the live config.
</pre>

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

@param value The bytes for networkCode 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/Slate.java