}
	}

	return nil
}

// Concurrency helpers

type concErr struct {
	errMap     map[string]error
	summaryErr error
}

func (c concErr) Error() string {
	if c.summaryErr != nil {
		return c.summaryErr.Error()
	}
	return "<nil>"
}

func (c concErr) Unwrap() error {
	return c.summaryErr
}

            <ul>
            <li>{@code length(string)}: Returns the length of the given string.</li>
            <li>{@code upper(string)}: Converts the string to uppercase.</li>
            <li>{@code lower(string)}: Converts the string to lowercase.</li>
            <li>{@code substring(string, start, [end])}: Returns a substring of the given string.</li>

  The Hatter shook his head mournfully.  `Not I!' he replied.
`We quarrelled last March--just before HE went mad, you know--'
(pointing with his tea spoon at the March Hare,) `--it was at the
great concert given by the Queen of Hearts, and I had to sing

            "Twinkle, twinkle, little bat!
            How I wonder what you're at!"

You know the song, perhaps?'

.slice(index + 1)\n    .concat(validPlacements.slice(0, index));\n  return counter ? arr.reverse() : arr;\n}\n","import isNumeric from '../utils/isNumeric';\nimport getClientRect from '../utils/getClientRect';\nimport find from '../utils/find';\n\n/**\n * Converts a string containing value + unit into a px value number\n * @function\n * @memberof {modifiers~offset}\n * @private\n * @argument {String} str - Value + unit string\n * @argument {String} measurement - `height` or `width`\n * @argument {Object} popperOffsets\n...

	ch := make(chan prometheus.Metric)
	go func() {
		defer xioutil.SafeClose(ch)
		// Collects prometheus metrics from hist and sends it over ch
		hist.Collect(ch)
	}()

	// Converts metrics received into internal []Metric type
	var metrics []MetricV2
	buckets := make(map[string][]MetricV2, v2MetricsMaxBuckets)
	for promMetric := range ch {
		dtoMetric := &dto.Metric{}

  - [beta] StatefulSets allow workloads that require persistent identity or per-instance storage to be created and managed on Kubernetes. ([docs](http://kubernetes.io/docs/concepts/abstractions/controllers/statefulsets/)) ([kubernetes/features#137](https://github.com/kubernetes/enhancements/issues/137))