public Builder clearScaleOutSize() {
        bitField0_ = (bitField0_ & ~0x00000002);
        scaleOutSize_ = 0;
        onChanged();
        return this;
      }
<pre>
Required. Number of nodes to add to a cluster during a scale-out
operation. Must be divisible by 2 for stretched clusters. During a
scale-in operation only one node (or 2 for stretched clusters) are
removed in a single iteration.
</pre>

<code>int32 scale_out_size = 2 [(.google.api.field_behavior) = REQUIRED];</code>

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