Bo-Yi Wu afd9ff889e chore: update code format. (#628) %!s(int64=4) %!d(string=hai) anos
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builder.go af531cf264 fix golint issues (#533) %!s(int64=4) %!d(string=hai) anos
builder_test.go afd9ff889e chore: update code format. (#628) %!s(int64=4) %!d(string=hai) anos