public com.google.cloud.vertexai.api.Tensor.Builder putStructValBuilderIfAbsent(
        java.lang.String key) {
      java.util.Map<java.lang.String, com.google.cloud.vertexai.api.TensorOrBuilder> builderMap =
          internalGetMutableStructVal().ensureBuilderMap();
      com.google.cloud.vertexai.api.TensorOrBuilder entry = builderMap.get(key);
      if (entry == null) {
        entry = com.google.cloud.vertexai.api.Tensor.newBuilder();
        builderMap.put(key, entry);
      }
      if (entry instanceof com.google.cloud.vertexai.api.Tensor) {
        entry = ((com.google.cloud.vertexai.api.Tensor) entry).toBuilder();
        builderMap.put(key, entry);
      }
      return (com.google.cloud.vertexai.api.Tensor.Builder) entry;
    }
<pre>
A map of string to tensor.
</pre>

<code>map&lt;string, .google.cloud.vertexai.v1.Tensor&gt; struct_val = 12;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Tensor.java