public Builder mergeValueSchema(com.google.cloud.visionai.v1.DataSchemaDetails value) {
        if (valueSchemaBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0)
              && valueSchema_ != null
              && valueSchema_
                  != com.google.cloud.visionai.v1.DataSchemaDetails.getDefaultInstance()) {
            getValueSchemaBuilder().mergeFrom(value);
          } else {
            valueSchema_ = value;
          }
        } else {
          valueSchemaBuilder_.mergeFrom(value);
        }
        if (valueSchema_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
<pre>
The value's data schema in the list.
</pre>

<code>.google.cloud.visionai.v1.DataSchemaDetails value_schema = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/DataSchemaDetails.java