Copyright 2018, OpenCensus Authors 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 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

package metricdata

import (
	
)
Exemplars keys.
const (
	AttachmentKeySpanContext = "SpanContext"
)
Exemplar is an example data point associated with each bucket of a distribution type aggregation. Their purpose is to provide an example of the kind of thing (request, RPC, trace span, etc.) that resulted in that measurement.
type Exemplar struct {
	Value       float64     // the value that was recorded
	Timestamp   time.Time   // the time the value was recorded
	Attachments Attachments // attachments (if any)
}
Attachments is a map of extra values associated with a recorded data point.