[iOS] EthereumMessageSigner: .signTypedMessageEip155() && .signTypedMessage methods

[Alloist]

Hello!
I have a task to sign data of type eip155. In your tests I have found methods that may work for me (EthereumMessageSigner.signTypedMessageEip155 && EthereumMessageSigner.signTypedMessage ), but I can't find an approach to use them. Could you please tell me how I can access these methods from my application?
Maybe I should use something else to sign transactions from dApp?

[Alloist]

Closing as it is not relevant after the latest updates.