public Builder setDataSchema(com.google.cloud.visionai.v1.DataSchema value) {
      if (dataSchemaBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        dataSchema_ = value;
      } else {
        dataSchemaBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Required. The data schema's `name` field is used to identify the data
schema to be updated. Format:
`projects/{project_number}/locations/{location}/corpora/{corpus}/dataSchemas/{data_schema}`
</pre>

<code>
.google.cloud.visionai.v1.DataSchema data_schema = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UpdateDataSchemaRequest.java