missing type definitions for some class members

Looks like the type defs might need an update (willing to help if I can circle back time willing). F.e. `this.contexts` is available, but `this.getContext()` is not: <img width="685" alt="Screenshot 2024-08-03 at 1 34 58 PM" src="https://github.com/user-attachments/assets/41c14fcc-18b0-4cc1-9592-be62766cd425"> <img width="742" alt="Screenshot 2024-08-03 at 1 35 04 PM" src="https://github.com/user-attachments/assets/4560cfe9-13a4-45d6-8af8-70385f6254d3">