# typed: strict
# frozen_string_literal: true

class Hash
  sig do
    type_parameters(:k2).params(
      other_hash: T::Hash[T.type_parameter(:k2), T.untyped],
      block: T.nilable(T.proc.params(k: T.untyped, v1: T.untyped, v2: T.untyped).returns(T.untyped))
    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:k2)), T.untyped])
  end
  def deep_merge(other_hash, &block); end

  sig do
    type_parameters(:k2).params(
      other_hash: T::Hash[T.type_parameter(:k2), T.untyped],
      block: T.nilable(T.proc.params(k: T.untyped, v1: T.untyped, v2: T.untyped).returns(T.untyped))
    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:k2)), T.untyped])
  end
  def deep_merge!(other_hash, &block); end
end