/** * <code>optional .openxc.DynamicField event = 3;</code> */ private com.google.protobuf.SingleFieldBuilderV3< com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder> getEventFieldBuilder() { if (eventBuilder_ == null) { eventBuilder_ = new com.google.protobuf.SingleFieldBuilderV3< com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder>( getEvent(), getParentForChildren(), isClean()); event_ = null; } return eventBuilder_; } public final Builder setUnknownFields(