public Builder clearSha256() {
        bitField0_ = (bitField0_ & ~0x00000001);
        sha256_ = getDefaultInstance().getSha256();
        onChanged();
        return this;
      }
<pre>
The SHA256 hash of the client state; that is, of the sorted list of all
hashes present in the database.
</pre>

<code>bytes sha256 = 1;</code>

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