public static com.google.cloud.vertexai.api.FeatureNoiseSigma.NoiseSigmaForFeature parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
          PARSER, input, extensionRegistry);
    }
<pre>
This represents the standard deviation of the Gaussian kernel that will
be used to add noise to the feature prior to computing gradients. Similar
to [noise_sigma][google.cloud.aiplatform.v1.SmoothGradConfig.noise_sigma]
but represents the noise added to the current feature. Defaults to 0.1.
</pre>

<code>float sigma = 2;</code>

@return The sigma.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/FeatureNoiseSigma.java