keen/col/sorted-map
Sourcemerge[k, v] (k, v) sorted-map(a (k, v) sorted-map, b (k, v) sorted-map, f v mut((k, v, v) tuple3)) k sorted-keyReturns a map containing keys that are in either
a or b. Calls f when the same key appears in both; otherwise uses the value from whichever one has the key.intersect[k, v] (k, v) sorted-map(a (k, v) sorted-map, b (k, v) sorted-map, f v mut((k, v, v) tuple3)) k sorted-keyReturns a map containing only keys that are in both
a and b. Calls f on values with the same key.
btoa. Values inboverwrite those ina. For a more customizable version, seemerge.