Add Connection.getPartner method

Sources/ElixxirDAppsSDK/Connection.swift

@@ -2,6 +2,7 @@ import Bindings
 
 public struct Connection {
   public var isAuthenticated: () -> Bool
+  public var getPartner: () -> Data
   public var send: MessageSender
   public var listen: MessageListener
 }
@@ -12,6 +13,12 @@ extension Connection {
   ) -> Connection {
     Connection(
       isAuthenticated: { false },
+      getPartner: {
+        guard let data = bindingsConnection.getPartner() else {
+          fatalError("BindingsConnection.getPartner returned `nil`")
+        }
+        return data
+      },
       send: .live(bindingsConnection: bindingsConnection),
       listen: .live(bindingsConnection: bindingsConnection)
     )
@@ -22,6 +29,12 @@ extension Connection {
   ) -> Connection {
     Connection(
       isAuthenticated: bindingsAuthenticatedConnection.isAuthenticated,
+      getPartner: {
+        guard let data = bindingsAuthenticatedConnection.getPartner() else {
+          fatalError("BindingsAuthenticatedConnection.getPartner returned `nil`")
+        }
+        return data
+      },
       send: .live(bindingsAuthenticatedConnection: bindingsAuthenticatedConnection),
       listen: .live(bindingsAuthenticatedConnection: bindingsAuthenticatedConnection)
     )
@@ -32,6 +45,7 @@ extension Connection {
 extension Connection {
   public static let failing = Connection(
     isAuthenticated: { fatalError("Not implemented") },
+    getPartner: { fatalError("Not implemented") },
     send: .failing,
     listen: .failing
   )