Returns the average queue time of the most recently received responses
in seconds.
Returns number
getLatest
getLatest(): undefined | number
Returns the queue time of the most recently received response in seconds.
Returns undefined | number
getValues
getValues(): [number, number][]
Returns a list of the most recently received queue time values as tuples
of the timestamp of the response being processed in milliseconds and the
queue time in seconds.
An object providing methods for accessing queue time metrics of the most recently received server responses if the server supports this feature.