OptionalbaseUrl?: stringOptionalfallbackTransport?: null | TransportOptionalname?: stringOptionalpollingInterval?: numberInterval of polling (milliseconds). Default is 1000 (1 second).
Optionaltimeout?: numberThe polling timeout for the transaction (milliseconds). If not provided, there is no timeout.
The fallback transport is used when the requested method is not supported by the Circle Wallets provider. By default, it's a http provider that uses the public RPC endpoint. Set to null to disable the fallback behavior.