in internal/proxy/proxy.go [299:312]
func parseImpersonationChain(chain string) (string, []string) {
accts := strings.Split(chain, ",")
target := accts[0]
// Assign delegates if the chain is more than one account. Delegation
// goes from last back towards target, e.g., With sa1,sa2,sa3, sa3
// delegates to sa2, which impersonates the target sa1.
var delegates []string
if l := len(accts); l > 1 {
for i := l - 1; i > 0; i-- {
delegates = append(delegates, accts[i])
}
}
return target, delegates
}