core/kernel.rbs in rbs-3.6.1 vs core/kernel.rbs in rbs-3.7.0.dev.1

@@ -1207,10 +1207,10 @@
   #   rdoc-file=proc.c
   #   - proc   { |...| block }  -> a_proc
   # -->
   # Equivalent to Proc.new.
   #
-  def self?.proc: () { () -> untyped } -> Proc
+  def self?.proc: () { (?) -> untyped } -> Proc
 
   # <!--
   #   rdoc-file=proc.c
   #   - lambda { |...| block }  -> a_proc
   # -->