Create init method on provider interface

vendor/code.cloudfoundry.org/clock/LICENSE

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+      the conditions stated in this License.
+
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+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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vendor/code.cloudfoundry.org/clock/NOTICE

@@ -0,0 +1,20 @@
+Copyright (c) 2015-Present CloudFoundry.org Foundation, Inc. All Rights Reserved.
+
+This project contains software that is Copyright (c) 2015 Pivotal Software, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
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+limitations under the License.
+
+This project may include a number of subcomponents with separate
+copyright notices and license terms. Your use of these subcomponents
+is subject to the terms and conditions of each subcomponent's license,
+as noted in the LICENSE file.

vendor/code.cloudfoundry.org/clock/clock.go

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+package clock
+
+import "time"
+
+type Clock interface {
+	Now() time.Time
+	Sleep(d time.Duration)
+	Since(t time.Time) time.Duration
+	// After waits for the duration to elapse and then sends the current time
+	// on the returned channel.
+	// It is equivalent to clock.NewTimer(d).C.
+	// The underlying Timer is not recovered by the garbage collector
+	// until the timer fires. If efficiency is a concern, use clock.NewTimer
+	// instead and call Timer.Stop if the timer is no longer needed.
+	After(d time.Duration) <-chan time.Time
+
+	NewTimer(d time.Duration) Timer
+	NewTicker(d time.Duration) Ticker
+}
+
+type realClock struct{}
+
+func NewClock() Clock {
+	return &realClock{}
+}
+
+func (clock *realClock) Now() time.Time {
+	return time.Now()
+}
+
+func (clock *realClock) Since(t time.Time) time.Duration {
+	return time.Now().Sub(t)
+}
+
+func (clock *realClock) Sleep(d time.Duration) {
+	<-clock.NewTimer(d).C()
+}
+
+func (clock *realClock) After(d time.Duration) <-chan time.Time {
+	return clock.NewTimer(d).C()
+}
+
+func (clock *realClock) NewTimer(d time.Duration) Timer {
+	return &realTimer{
+		t: time.NewTimer(d),
+	}
+}
+
+func (clock *realClock) NewTicker(d time.Duration) Ticker {
+	return &realTicker{
+		t: time.NewTicker(d),
+	}
+}

vendor/code.cloudfoundry.org/clock/package.go

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+package clock // import "code.cloudfoundry.org/clock"

vendor/code.cloudfoundry.org/clock/ticker.go

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+package clock
+
+import "time"
+
+type Ticker interface {
+	C() <-chan time.Time
+	Stop()
+}
+
+type realTicker struct {
+	t *time.Ticker
+}
+
+func (t *realTicker) C() <-chan time.Time {
+	return t.t.C
+}
+
+func (t *realTicker) Stop() {
+	t.t.Stop()
+}

vendor/code.cloudfoundry.org/clock/timer.go

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+package clock
+
+import "time"
+
+type Timer interface {
+	C() <-chan time.Time
+	Reset(d time.Duration) bool
+	Stop() bool
+}
+
+type realTimer struct {
+	t *time.Timer
+}
+
+func (t *realTimer) C() <-chan time.Time {
+	return t.t.C
+}
+
+func (t *realTimer) Reset(d time.Duration) bool {
+	return t.t.Reset(d)
+}
+
+func (t *realTimer) Stop() bool {
+	return t.t.Stop()
+}