channel-sync: Add timing
channel-sync: Add timing

xor-gate/go-snippets,xor-gate/go-by-example,xor-gate/go-by-example,xor-gate/go-by-example,xor-gate/go-snippets,xor-gate/go-snippets,xor-gate/go-by-example,xor-gate/go-by-example,xor-gate/go-snippets