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Logging: Fixes filtering logs based on gokitlog levels (#47195)
This commit is contained in:
Marcus Efraimsson
GitHub
parent
5675496f6b
commit
b4346a5613
@ -1,6 +1,9 @@
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package level
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import "github.com/go-kit/log"
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import (
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"github.com/go-kit/log"
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gokitlevel "github.com/go-kit/log/level"
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)
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// Error returns a logger that includes a Key/ErrorValue pair.
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func Error(logger log.Logger) log.Logger {
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@ -53,6 +56,12 @@ func (l *logger) Log(keyvals ...interface{}) error {
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levelAllowed = l.allowed&v.level != 0
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break
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}
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if v, ok := keyvals[i].(gokitlevel.Value); ok {
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hasLevel = true
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levelAllowed = l.allowed&levelFromGokitLevel(v) != 0
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break
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}
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}
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if !hasLevel && l.squelchNoLevel {
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return l.errNoLevel
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@ -203,3 +212,16 @@ type levelValue struct {
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func (v *levelValue) String() string { return v.name }
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func (v *levelValue) levelVal() {}
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func levelFromGokitLevel(l gokitlevel.Value) level {
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switch l.String() {
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case gokitlevel.ErrorValue().String():
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return levelError
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case gokitlevel.WarnValue().String():
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return levelWarn
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case gokitlevel.DebugValue().String():
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return levelDebug
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}
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return levelInfo
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}
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154
pkg/infra/log/level/level_test.go
Normal file
154
pkg/infra/log/level/level_test.go
Normal file
@ -0,0 +1,154 @@
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package level_test
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import (
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"testing"
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gokitlog "github.com/go-kit/log"
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gokitlevel "github.com/go-kit/log/level"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/infra/log/level"
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"github.com/stretchr/testify/require"
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)
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func TestNewFilter(t *testing.T) {
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newFilteredLoggerScenario(t, "Given all levels is allowed should log all messages", level.AllowAll(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 8)
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require.Equal(t, "lvl", ctx.loggedArgs[0][2].(string))
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require.Equal(t, "info", ctx.loggedArgs[0][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[1][2].(string))
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require.Equal(t, "warn", ctx.loggedArgs[1][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[2][2].(string))
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require.Equal(t, "eror", ctx.loggedArgs[2][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[3][2].(string))
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require.Equal(t, "dbug", ctx.loggedArgs[3][3].(level.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[4][0].(string))
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require.Equal(t, "info", ctx.loggedArgs[4][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[5][0].(string))
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require.Equal(t, "warn", ctx.loggedArgs[5][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[6][0].(string))
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require.Equal(t, "error", ctx.loggedArgs[6][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[7][0].(string))
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require.Equal(t, "debug", ctx.loggedArgs[7][1].(gokitlevel.Value).String())
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})
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newFilteredLoggerScenario(t, "Given error, warnings, info, debug is allowed should log all messages", level.AllowDebug(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 8)
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require.Equal(t, "lvl", ctx.loggedArgs[0][2].(string))
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require.Equal(t, "info", ctx.loggedArgs[0][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[1][2].(string))
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require.Equal(t, "warn", ctx.loggedArgs[1][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[2][2].(string))
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require.Equal(t, "eror", ctx.loggedArgs[2][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[3][2].(string))
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require.Equal(t, "dbug", ctx.loggedArgs[3][3].(level.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[4][0].(string))
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require.Equal(t, "info", ctx.loggedArgs[4][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[5][0].(string))
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require.Equal(t, "warn", ctx.loggedArgs[5][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[6][0].(string))
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require.Equal(t, "error", ctx.loggedArgs[6][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[7][0].(string))
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require.Equal(t, "debug", ctx.loggedArgs[7][1].(gokitlevel.Value).String())
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})
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newFilteredLoggerScenario(t, "Given error, warnings is allowed should log error and warning messages", level.AllowWarn(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 4)
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require.Equal(t, "lvl", ctx.loggedArgs[0][2].(string))
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require.Equal(t, "warn", ctx.loggedArgs[0][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[1][2].(string))
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require.Equal(t, "eror", ctx.loggedArgs[1][3].(level.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[2][0].(string))
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require.Equal(t, "warn", ctx.loggedArgs[2][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[3][0].(string))
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require.Equal(t, "error", ctx.loggedArgs[3][1].(gokitlevel.Value).String())
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})
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newFilteredLoggerScenario(t, "Given error allowed should log error messages", level.AllowError(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 2)
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require.Equal(t, "lvl", ctx.loggedArgs[0][2].(string))
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require.Equal(t, "eror", ctx.loggedArgs[0][3].(level.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[1][0].(string))
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require.Equal(t, "error", ctx.loggedArgs[1][1].(gokitlevel.Value).String())
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})
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newFilteredLoggerScenario(t, "Given error, warnings, info is allowed should log error, warning and info messages", level.AllowInfo(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 6)
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require.Equal(t, "lvl", ctx.loggedArgs[0][2].(string))
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require.Equal(t, "info", ctx.loggedArgs[0][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[1][2].(string))
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require.Equal(t, "warn", ctx.loggedArgs[1][3].(level.Value).String())
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require.Equal(t, "lvl", ctx.loggedArgs[2][2].(string))
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require.Equal(t, "eror", ctx.loggedArgs[2][3].(level.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[3][0].(string))
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require.Equal(t, "info", ctx.loggedArgs[3][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[4][0].(string))
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require.Equal(t, "warn", ctx.loggedArgs[4][1].(gokitlevel.Value).String())
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require.Equal(t, "level", ctx.loggedArgs[5][0].(string))
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require.Equal(t, "error", ctx.loggedArgs[5][1].(gokitlevel.Value).String())
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})
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newFilteredLoggerScenario(t, "Given no levels is allowed should not log any messages", level.AllowNone(), func(t *testing.T, ctx *scenarioContext) {
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logTestMessages(t, ctx)
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require.Len(t, ctx.loggedArgs, 0)
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})
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}
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func logTestMessages(t *testing.T, ctx *scenarioContext) {
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t.Helper()
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ctx.logger.Info("info msg")
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ctx.logger.Warn("warn msg")
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ctx.logger.Error("error msg")
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ctx.logger.Debug("debug msg")
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err := gokitlevel.Info(ctx.logger).Log("msg", "gokit info msg")
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require.NoError(t, err)
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err = gokitlevel.Warn(ctx.logger).Log("msg", "gokit warn msg")
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require.NoError(t, err)
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err = gokitlevel.Error(ctx.logger).Log("msg", "gokit error msg")
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require.NoError(t, err)
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err = gokitlevel.Debug(ctx.logger).Log("msg", "gokit debug msg")
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require.NoError(t, err)
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}
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type scenarioContext struct {
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loggedArgs [][]interface{}
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logger log.Logger
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}
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func newFilteredLoggerScenario(t *testing.T, desc string, option level.Option, fn func(t *testing.T, ctx *scenarioContext)) {
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t.Helper()
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ctx := &scenarioContext{
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loggedArgs: [][]interface{}{},
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}
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l := gokitlog.LoggerFunc(func(i ...interface{}) error {
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ctx.loggedArgs = append(ctx.loggedArgs, i)
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return nil
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})
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filteredLogger := level.NewFilter(l, option)
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testLogger := log.New("test")
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testLogger.Swap(filteredLogger)
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ctx.logger = testLogger
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t.Run(desc, func(t *testing.T) {
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fn(t, ctx)
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})
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}
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