public Builder clearTarget() {
      target_ = getDefaultInstance().getTarget();
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }
<pre>
Target of the operation - for example
projects/project-1/connectivityTests/test-1
</pre>

<code>string target = 3;</code>

@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java