public Builder clearTypeClass() {
      typeClass_ = getDefaultInstance().getTypeClass();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
The type class of the packet. Its possible values are:
"gst", "protobuf", and "string".
</pre>

<code>string type_class = 1;</code>

@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketType.java