You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: term.rb
    path of file: ./repos/ruby/lib/bundler/vendor/pub_grub/lib/pub_grub
    
    the code of the file until where you have to start completion: module Bundler::PubGrub
  class Term
    attr_reader :package, :constraint, :positive

    def initialize(constraint, positive)
      @constraint = constraint
      @package = @constraint.package
      @positive = positive
    end

    def to_s(allow_
    
    def intersect(other)
      raise ArgumentError, "packages must match" if package != other.package

      if positive? && other.positive?
        self.class.new(constraint.intersect(other.constraint), true)
      elsif negative? && other.negative?
        self.class.new(constraint.union(other.constraint), false)
      else
        positive = positive? ? self : other
        negative = negative? ? self : other
        self.class.new(positive.constraint.intersect(negative.constraint.invert), true)
      end