class RuboCop::Cop::Style::TrailingCommaInBlockArgs

def on_block(node) # rubocop:disable InternalAffairs/NumblockHandler
  # lambda literal (`->`) never has block arguments.
  return if node.send_node.lambda_literal?
  return unless useless_trailing_comma?(node)
  last_comma_pos = last_comma(node).pos
  add_offense(last_comma_pos) { |corrector| corrector.replace(last_comma_pos, '') }
end