Added some docs

Author: hiranya911

FirebaseAdmin/FirebaseAdmin.Tests/FirebaseAppTest.cs

@@ -214,7 +214,11 @@ public void GetOrInitService()
         public void GetSdkVersion()
         {
             var version = FirebaseApp.GetSdkVersion();
-            Assert.Equal(3, version.Split(".").Length);
+
+            var segments = version.Split(".");
+            Assert.Equal(3, segments.Length);
+            int result;
+            Assert.All(segments, (segment) => int.TryParse(segment, out result));
         }
 
         public void Dispose()

FirebaseAdmin/FirebaseAdmin/FirebaseApp.cs

@@ -262,6 +262,10 @@ internal static void DeleteAll()
             }
         }
 
+        /// <summary>
+        /// Returns the current version of the .NET assembly.
+        /// </summary>
+        /// <returns>A version string in major.minor.patch format.</returns>
         internal static string GetSdkVersion()
         {
             return typeof(FirebaseApp).GetTypeInfo().Assembly.GetName().Version.ToString(3);

FirebaseAdmin/FirebaseAdmin/Messaging/FirebaseMessagingClient.cs

@@ -101,7 +101,7 @@ public async Task<string> SendAsync(
             };
             try
             {
-                var response = await this.PostAsync(request, cancellationToken).ConfigureAwait(false);
+                var response = await this.SendRequestAsync(request, cancellationToken).ConfigureAwait(false);
                 var json = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
                 if (!response.IsSuccessStatusCode)
                 {
@@ -175,7 +175,7 @@ private static FirebaseException CreateExceptionFor(RequestError requestError)
             return new FirebaseException(requestError.ToString());
         }
 
-        private async Task<HttpResponseMessage> PostAsync(object body, CancellationToken cancellationToken)
+        private async Task<HttpResponseMessage> SendRequestAsync(object body, CancellationToken cancellationToken)
         {
             var request = new HttpRequestMessage()
             {
@@ -187,7 +187,10 @@ private async Task<HttpResponseMessage> PostAsync(object body, CancellationToken
             return await this.httpClient.SendAsync(request, cancellationToken).ConfigureAwait(false);
         }
 
-        private async Task<BatchResponse> SendBatchRequestAsync(IEnumerable<Message> messages, bool dryRun, CancellationToken cancellationToken)
+        private async Task<BatchResponse> SendBatchRequestAsync(
+            IEnumerable<Message> messages,
+            bool dryRun,
+            CancellationToken cancellationToken)
         {
             var responses = new List<SendResponse>();
 
@@ -206,15 +209,19 @@ private async Task<BatchResponse> SendBatchRequestAsync(IEnumerable<Message> mes
                     }
                     else
                     {
-                        responses.Add(SendResponse.FromException(new FirebaseException($"Unexpected batch response. Response status code was {message.StatusCode}.")));
+                        responses.Add(SendResponse.FromException(new FirebaseException(
+                            $"Unexpected batch response. Response status code was {message.StatusCode}.")));
                     }
                 });
 
             await batch.ExecuteAsync(cancellationToken).ConfigureAwait(false);
             return new BatchResponse(responses);
         }
 
-        private BatchRequest CreateBatchRequest(IEnumerable<Message> messages, bool dryRun, BatchRequest.OnResponse<SingleMessageResponse> callback)
+        private BatchRequest CreateBatchRequest(
+            IEnumerable<Message> messages,
+            bool dryRun,
+            BatchRequest.OnResponse<SingleMessageResponse> callback)
         {
             var batch = new BatchRequest(this.fcmClientService, FcmBatchUrl);