Get profile information for the signed-in user, if any.

💾 This method alters the persisted account state.

This method fetches a `Profile` struct with information about the currently-signed-in user, either by using locally-cached profile information or by fetching fresh data from the server.

Arguments

• ignore_cache - if true, always hit the server for fresh profile information.

Notes

• Profile information is only available to applications that have been granted the profile scope.

• There is currently no API for fetching cached profile information without potentially hitting the server.

• If there is no signed-in user, this method will throw an FxaError::Authentication error.