public Builder setSizeGb(int value) {

          sizeGb_ = value;
          bitField0_ |= 0x00000001;
          onChanged();
          return this;
        }
<pre>
Optional. The GB capacity of a persistent home directory for each
workstation created with this configuration. Must be empty if
[source_snapshot][google.cloud.workstations.v1beta.WorkstationConfig.PersistentDirectory.GceRegionalPersistentDisk.source_snapshot]
is set.

Valid values are `10`, `50`, `100`, `200`, `500`, or `1000`.
Defaults to `200`. If less than `200` GB, the
[disk_type][google.cloud.workstations.v1beta.WorkstationConfig.PersistentDirectory.GceRegionalPersistentDisk.disk_type]
must be
`"pd-balanced"` or `"pd-ssd"`.
</pre>

<code>int32 size_gb = 1 [(.google.api.field_behavior) = OPTIONAL];</code>

@param value The sizeGb to set.
@return This builder for chaining.
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/WorkstationConfig.java