public Builder mergeExpireTime(com.google.protobuf.Timestamp value) {
      if (expireTimeBuilder_ == null) {
        if (((bitField0_ & 0x00000008) != 0)
            && expireTime_ != null
            && expireTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
          getExpireTimeBuilder().mergeFrom(value);
        } else {
          expireTime_ = value;
        }
      } else {
        expireTimeBuilder_.mergeFrom(value);
      }
      if (expireTime_ != null) {
        bitField0_ |= 0x00000008;
        onChanged();
      }
      return this;
    }
<pre>
The lease expire time.
</pre>

<code>.google.protobuf.Timestamp expire_time = 4;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Lease.java