EXHIBIT A

Agreement of Joint Filing

The undersigned hereby agree that a single Schedule 13D (or any amendment thereto) relating to the common stock of the Issuer shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13D.

Date: September 8, 2022

FORIS VENTURES, LLC
By:	/s/ Barbara Hager
Name:	Barbara Hager
Title:	Manager
VALLEJO VENTURES TRUST
By:	/s/ Barbara Hager
Name:	Barbara Hager
Title:	Special Trustee
L. JOHN DOERR
By:	/s/ L. John Doerr, by Barbara Hager as his attorney in fact
ANN DOERR
By:	/s/ Ann Howland Doerr, by Barbara Hager as her attorney in fact
BARBARA HAGER
By:	/s/ Barbara Hager