change Array[untyped] to Tuple

Author: rickhull

lib/compsci/bit_set.rb

@@ -93,9 +93,8 @@ def byte_count
 
     # size, ratio of "on" bits
     def to_s
-      format("%.1f%% positive (%.1f %s)",
-             self.ratio * 100,
-             *self.class.size(bytes: self.byte_count))
+      size, label = self.class.size(bytes: self.byte_count)
+      format("%.1f%% positive (%.1f %s)", self.ratio * 100, size, label)
     end
   end
 end

sig/bit_set.rbs

@@ -16,7 +16,7 @@ module CompSci
     TiB: Integer
     PiB: Integer
 
-    def self.size: (?bytes: Integer, ?bits: Integer) -> Array[untyped]
+    def self.size: (?bytes: Integer, ?bits: Integer) -> [Float | Integer, String]
 
     attr_reader storage: Array[Integer]
     attr_reader count: Integer