public Builder mergeItems(com.google.cloud.vertexai.api.Schema value) {
      if (itemsBuilder_ == null) {
        if (((bitField0_ & 0x00000040) != 0)
            && items_ != null
            && items_ != com.google.cloud.vertexai.api.Schema.getDefaultInstance()) {
          getItemsBuilder().mergeFrom(value);
        } else {
          items_ = value;
        }
      } else {
        itemsBuilder_.mergeFrom(value);
      }
      if (items_ != null) {
        bitField0_ |= 0x00000040;
        onChanged();
      }
      return this;
    }
<pre>
Optional. SCHEMA FIELDS FOR TYPE ARRAY
Schema of the elements of Type.ARRAY.
</pre>

<code>.google.cloud.vertexai.v1.Schema items = 2 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Schema.java