public Builder setSourceType(
        com.google.cloud.visionai.v1.CustomProcessorSourceInfo.SourceType value) {
      if (value == null) {
        throw new NullPointerException();
      }
      bitField0_ |= 0x00000004;
      sourceType_ = value.getNumber();
      onChanged();
      return this;
    }
<pre>
The original product which holds the custom processor's functionality.
</pre>

<code>.google.cloud.visionai.v1.CustomProcessorSourceInfo.SourceType source_type = 1;</code>

@param value The sourceType to set.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CustomProcessorSourceInfo.java