class RuboCop::Cop::RSpec::SubjectStub

def on_top_level_group(node)
  @explicit_subjects = find_all_explicit(node) { |n| subject?(n) }
  @subject_overrides = find_all_explicit(node) { |n| let?(n) }
  find_subject_expectations(node) do |stub|
    add_offense(stub)
  end
end