Add more `assert`s for checking required props

lib/client/v1/comment_endpoint.dart

@@ -13,6 +13,10 @@ extension CommentEndpoint on V1 {
     int formId,
     @required String auth,
   }) {
+    assert(content != null);
+    assert(postId != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -24,6 +28,10 @@ extension CommentEndpoint on V1 {
     String formId,
     @required String auth,
   }) {
+    assert(content != null);
+    assert(editId != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -35,6 +43,10 @@ extension CommentEndpoint on V1 {
     @required bool deleted,
     @required String auth,
   }) {
+    assert(editId != null);
+    assert(deleted != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -47,6 +59,10 @@ extension CommentEndpoint on V1 {
     String reason,
     @required String auth,
   }) {
+    assert(editId != null);
+    assert(removed != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -57,6 +73,10 @@ extension CommentEndpoint on V1 {
     @required bool read,
     @required String auth,
   }) {
+    assert(editId != null);
+    assert(read != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -67,6 +87,10 @@ extension CommentEndpoint on V1 {
     @required bool save,
     @required String auth,
   }) {
+    assert(commentId != null);
+    assert(save != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 
@@ -77,6 +101,10 @@ extension CommentEndpoint on V1 {
     @required Vote score,
     @required String auth,
   }) {
+    assert(commentId != null);
+    assert(score != null);
+    assert(auth != null);
+
     throw UnimplementedError();
   }
 }

lib/client/v1/main.dart

@@ -20,7 +20,7 @@ class V1 {
 
   /// POST /search
   /// https://dev.lemmy.ml/docs/contributing_websocket_http_api.html#search
-  Search search({
+  Future<Search> search({
     @required String q,
     @required SearchType type,
     String communityId,
@@ -29,6 +29,10 @@ class V1 {
     int limit,
     String auth,
   }) {
+    assert(q != null);
+    assert(type != null);
+    assert(sort != null);
+
     throw UnimplementedError();
   }
 }
@@ -76,6 +80,7 @@ extension PostTypeValue on PostListingType {
 enum SortType {
   active,
   hot,
+  // ignore: constant_identifier_names
   new_,
   topDay,
   topWeek,