def Count.add
import bend-lint-pack@0.1.1.0/common.bend as Commonimport Base
402def Count.add(is_def: Bool, +x: String, c: Count) -> Count:
403 match c:
404 case Count{+seen, n}:
405 Count.put(Bool.and(is_def, Bool.not(has(seen, x))), x, seen, n)