implement wallet example proxy method #790

Job	Run time
Examples	7m 43s
Build binaries	3m 15s
CLI	4m 34s
Test (ubuntu-latest)	2m 31s
Test (runs-on, runner=8cpu-linux-arm64, run-id=12599815421)	1m 50s
Test (macos-latest)	2m 7s
Formatting & Clippy	27s
Test (Go) (ubuntu-latest)	1m 21s
Test (Go) (runs-on, runner=8cpu-linux-arm64, run-id=12599815421)	1m 8s
Test (Go) (macos-latest)	1m 32s
Test (Go) (windows-latest)	5m 17s
	31m 45s

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