EXHIBIT 99.1

                             JOINT FILING AGREEMENT

Pursuant to and in accordance with the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), and the rules and regulations thereunder, each
party hereto hereby agrees to the joint filing, on behalf of each of them, of
any filing required by such party under Section 13 or Section 16 of the
Exchange Act or any rule or regulation thereunder (including any amendment,
restatement, supplement, and/or exhibit thereto) with the Securities and
Exchange Commission (and, if such security is registered on a national
securities exchange, also with the exchange), and further agrees to the filing,
furnishing, and/or incorporation by reference of this agreement as an exhibit
thereto. This agreement shall remain in full force and effect until revoked by
any party hereto in a signed writing provided to each other party hereto, and
then only with respect to such revoking party.

IN WITNESS WHEREOF, each party hereto, being duly authorized, has caused this
agreement to be executed and effective as of the date set forth below.


Date: April 13, 2022               WELLS FARGO & COMPANY

                                   By:   /s/ Patricia Arce
                                       -----------------------------
                                   Name: Patricia Arce
                                   Title: Designated Signer


                                   WELLS FARGO BANK, N.A.

                                   By:   /s/ Alejandro Piekarewicz
                                       -----------------------------
                                   Name: Alejandro Piekarewicz
                                   Title: Director