class RuboCop::Cop::Style::ClassAndModuleChildren

def nest_definition(corrector, node)
  padding = ((' ' * indent_width) + leading_spaces(node)).to_s
  padding_for_trailing_end = padding.sub(' ' * node.loc.end.column, '')
  replace_keyword_with_module(corrector, node)
  split_on_double_colon(corrector, node, padding)
  add_trailing_end(corrector, node, padding_for_trailing_end)
end