class RuboCop::Cop::Layout::SpaceInsideHashLiteralBraces

def check_whitespace_only_hash(node)
  range = range_inside_hash(node)
  return unless range.source.match?(/\A\s+\z/m)
  add_offense(
    range,
    message: format(MSG, problem: 'empty hash literal braces detected')
  ) do |corrector|
    corrector.remove(range)
  end
end