public Builder setEngineVersionBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      engineVersion_ = value;
      bitField0_ |= 0x00010000;
      onChanged();
      return this;
    }
<pre>
Optional. Engine version of the instance.
</pre>

<code>string engine_version = 15 [(.google.api.field_behavior) = OPTIONAL];</code>

@param value The bytes for engineVersion to set.
@return This builder for chaining.
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/Instance.java