public async Task TestPairwiseExistsWorksForNotCreated()
 {
     Assert.IsFalse(await Pairwise.IsExistsAsync(wallet, theirDid));
 }
        public async Task TestPairwiseExistsWorks()
        {
            await Pairwise.CreateAsync(wallet, theirDid, myDid, null);

            Assert.IsTrue(await Pairwise.IsExistsAsync(wallet, theirDid));
        }