private com.google.protobuf.RepeatedFieldBuilderV3< com.google.logging.v2.LogMetric, com.google.logging.v2.LogMetric.Builder, com.google.logging.v2.LogMetricOrBuilder> getMetricsFieldBuilder() { if (metricsBuilder_ == null) { metricsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3< com.google.logging.v2.LogMetric, com.google.logging.v2.LogMetric.Builder, com.google.logging.v2.LogMetricOrBuilder>( metrics_, ((bitField0_ & 0x00000001) == 0x00000001), getParentForChildren(), isClean()); metrics_ = null; } return metricsBuilder_; }