California Code, Code of Civil Procedure - CCP § 429.30

(a) As used in this section:

(b) If the complaint contains a demand for relief on account of the alleged infringement of the plaintiff's rights in and to a literary, artistic, or intellectual production, there shall be attached to the complaint a copy of the production as to which the infringement is claimed and a copy of the alleged infringing production. If, by reason of bulk or the nature of the production, it is not practicable to attach a copy to the complaint, that fact and the reasons why it is impracticable to attach a copy of the production to the complaint shall be alleged; and the court, in connection with any demurrer, motion, or other proceedings in the cause in which a knowledge of the contents of such production may be necessary or desirable, shall make such order for a view of the production not attached as will suit the convenience of the court to the end that the contents of such production may be deemed to be a part of the complaint to the same extent and with the same force as though such production had been capable of being and had been attached to the complaint. The attachment of any such production in accordance with the provisions of this section shall not be deemed a making public of the production within the meaning of Section 983 of the Civil Code.