class RuboCop::Cop::RSpec::ReceiveMessages

def repeated_receive_message(node)
  node
    .children
    .select { |child| allow_receive_message?(child) }
    .group_by { |child| allow_argument(child) }
    .values
    .reject(&:one?)
    .flat_map { |items| add_repeated_lines_and_arguments(items) }
end