public com.google.protobuf.ByteString getIndexFeatureMappingBytes(int index) {
      return indexFeatureMapping_.getByteString(index);
    }
<pre>
A list of feature names for each index in the input tensor.
Required when the input
[InputMetadata.encoding][google.cloud.aiplatform.v1.ExplanationMetadata.InputMetadata.encoding]
is BAG_OF_FEATURES, BAG_OF_FEATURES_SPARSE, INDICATOR.
</pre>

<code>repeated string index_feature_mapping = 8;</code>

@param index The index of the value to return.
@return The bytes of the indexFeatureMapping at the given index.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ExplanationMetadata.java