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function Set.size(target)
import { Set } from "@monstermann/set"; Set.size(Set.create([1, 2, 3])); // 3 Set.size(Set.create()); // 0
import { Set } from "@monstermann/set"; pipe(Set.create([1, 2, 3]), Set.size()); // 3 pipe(Set.create(), Set.size()); // 0