How to modify an existing Variable created with StaticVariable in Soong?

How to modify an existing Variable created with StaticVariable (see below) in Soong?

How to modify an existing Variable created with StaticVariable in Soong?

How to modify an existing Variable created with StaticVariable (see below) in Soong?

How to modify an existing Variable created with StaticVariable in Soong?

How to modify an existing Variable created with StaticVariable (see below) in Soong?