Imports golang.org/x/net/context vitess.io/vitess/go/vt/vterrors vitess.io/vitess/go/vt/proto/vtrpc vitess.io/vitess/go/vt/proto/topodata vitess.io/vitess/go/vt/proto/query vitess.io/vitess/go/sqltypes vitess.io/vitess/go/sync2 vitess.io/vitess/go/vt/vttablet/queryservice Standard library imports fmt