class RuboCop::Cop::RSpec::ScatteredLet

def check_let_declarations(node)
  let_found = false
  mix_found = false
  node.each_child_node do |child|
    if let?(child)
      add_offense(child, :expression) if mix_found
      let_found = true
    elsif let_found
      mix_found = true
    end
  end
end