Storage upgrade feature not available in definition file for creating sandboxes

[thomasminney]

SandboxInfo and SandboxProcess Tooling API objects support Features property where 'SandboxStorage' can be specified to use the storage upgrades option.

https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_sandbox_definition.htm
https://help.salesforce.com/s/articleView?language=en_US&id=sf.data_sandbox_storage_upgrades.htm&type=5
https://developer.salesforce.com/docs/atlas.en-us.api_tooling.meta/api_tooling/tooling_api_objects_sandboxinfo.htm

Please can this Features property be available in the definition file.

I have tried:

{
	"sandboxName": "storage1",
	"licenseType": "Developer",
	"features": ["SandboxStorage"]
}

and get error: Cannot deserialize instance of textarea from START_ARRAY value [line:1, column:53]

[thomasminney]

Re-tested after release 2.95.6 and confirm this works if the definition file is:

{
	"sandboxName": "storage1",
	"licenseType": "Developer",
	"features": "['SandboxStorage']"
}