# File lib/brakeman/checks/check_redirect.rb, line 181
  def model_instance? exp
    if node_type? exp, :or
      model_instance? exp.lhs or model_instance? exp.rhs
    elsif call? exp
      if model_target? exp and
        (@model_find_calls.include? exp.method or exp.method.to_s.match(/^find_by_/))
        true
      else
        association?(exp.target, exp.method)
      end
    end
  end