How to stringify complex struct

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Another option is removing the ArrayList from ResponseArgs and simply using a slice:

diff --git a/stringify-complex-structs-original.zig b/stringify-complex-structs.zig
index 17359f3..3e0b2df 100644
--- a/stringify-complex-structs-original.zig
+++ b/stringify-complex-structs.zig
@@ -6,7 +6,7 @@ const Item = struct {
 };
 
 const ResponseArgs = struct {
-    docs: std.ArrayList(Item),
+    docs: []const Item,
 };
 
 const Response = struct {
@@ -31,7 +31,7 @@ pub fn main() !void {
     const response = Response{
         .status = 200,
         .msg = "Found 0 docs",
-        .args = ResponseArgs{ .docs = docs },
+        .args = ResponseArgs{ .docs = docs.items },
     };
 
     var buf: [100]u8 = undefined;
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