is Wallet On Device
Checks if a wallet exists on the device for the specified chain ID.
Return
True if a wallet exists on the device, false otherwise.
Parameters
chain Id
The ID of the chain to check. If null, checks for the existence of any wallet.
Checks if a wallet exists on the device for the specified PortalNamespace.
Return
True if a wallet exists on the device, false otherwise.
Parameters
namespace
The PortalNamespace representing the chain to check.