Initialize

When your extension deployment is registered to a new token deployment, a new extension proxy will be deployed, and your extension will be initialized.

When an extension is initialized, its initialize() function is invoked by the token. Use this function to perform any initialization that may be needed, for example:

• Setting default values for storage variables.
• Providing extension roles to the current _msgSender() (the current token admin).
• Setting up callback listeners for specific token events and callbacks.