How can I find and change variable for corner radius to another variable

Plugin and Widget API Questions
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I need to find Corner Radius which uses “VariableID:8e2209935ab4d5ca76ca72b16b33d9d94a7195fc/176:58” and after which it will change it to another Variable - “VariableID:dbbebf535f2311106458aac887ab378901bf445d/176:58”, how to do this?