Create a Sketch Map sketch from a sequence of pairs.
Create a Sketch Map sketch out of a single key/value pair.
All Sketch Maps created with this monoid will have the same parameter configuration.
We assume the Sketch Map on the left and right use the same hash functions.
We assume the Sketch Map on the left and right use the same hash functions.
override this if there is a faster way to do this sum than reduceLeftOption on plus
override this if there is a faster way to do this sum than reduceLeftOption on plus
A zero Sketch Map is one with zero elements.
A zero Sketch Map is one with zero elements.
Responsible for creating instances of SketchMap.