diff --git a/aider/coders/__init__.py b/aider/coders/__init__.py
index 55d46f4c1..40d2ebab7 100644
--- a/aider/coders/__init__.py
+++ b/aider/coders/__init__.py
@@ -1,10 +1,11 @@
+from .ask_coder import AskCoder
 from .base_coder import Coder
 from .editblock_coder import EditBlockCoder
 from .editblock_fenced_coder import EditBlockFencedCoder
 from .help_coder import HelpCoder
+from .single_wholefile_func_coder import SingleWholeFileFunctionCoder
 from .udiff_coder import UnifiedDiffCoder
 from .wholefile_coder import WholeFileCoder
-from .ask_coder import AskCoder
 
 __all__ = [
     HelpCoder,
@@ -14,4 +15,5 @@ __all__ = [
     EditBlockFencedCoder,
     WholeFileCoder,
     UnifiedDiffCoder,
+    SingleWholeFileFunctionCoder,
 ]
diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 35c3ac8d5..733d314a7 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1209,8 +1209,12 @@ class Coder:
         show_func_err = None
         show_content_err = None
         try:
-            self.partial_response_function_call = completion.choices[0].message.function_call
+            self.partial_response_function_call = (
+                completion.choices[0].message.tool_calls[0].function
+            )
+            dump(str(self.partial_response_function_call))
         except AttributeError as func_err:
+            dump(func_err)
             show_func_err = func_err
 
         try:
@@ -1219,7 +1223,7 @@ class Coder:
             show_content_err = content_err
 
         resp_hash = dict(
-            function_call=self.partial_response_function_call,
+            function_call=str(self.partial_response_function_call),
             content=self.partial_response_content,
         )
         resp_hash = hashlib.sha1(json.dumps(resp_hash, sort_keys=True).encode())
diff --git a/aider/coders/single_wholefile_func_coder.py b/aider/coders/single_wholefile_func_coder.py
index ef1680e97..290969180 100644
--- a/aider/coders/single_wholefile_func_coder.py
+++ b/aider/coders/single_wholefile_func_coder.py
@@ -1,3 +1,5 @@
+import json
+
 from aider import diffs
 
 from ..dump import dump  # noqa: F401
@@ -6,6 +8,8 @@ from .single_wholefile_func_prompts import SingleWholeFileFunctionPrompts
 
 
 class SingleWholeFileFunctionCoder(Coder):
+    edit_format = "func"
+
     functions = [
         dict(
             name="write_file",
@@ -31,7 +35,6 @@ class SingleWholeFileFunctionCoder(Coder):
     ]
 
     def __init__(self, *args, **kwargs):
-        raise RuntimeError("Deprecated, needs to be refactored to support get_edits/apply_edits")
         self.gpt_prompts = SingleWholeFileFunctionPrompts()
         super().__init__(*args, **kwargs)
 
@@ -44,12 +47,18 @@ class SingleWholeFileFunctionCoder(Coder):
             self.cur_messages += [dict(role="assistant", content=self.partial_response_content)]
 
     def render_incremental_response(self, final=False):
+        res = ""
         if self.partial_response_content:
-            return self.partial_response_content
+            res += self.partial_response_content
 
         args = self.parse_partial_args()
 
-        return str(args)
+        for k, v in args.items():
+            res += "\n"
+            res += f"{k}:\n"
+            res += v
+
+        return res
 
         if not args:
             return
@@ -95,18 +104,17 @@ class SingleWholeFileFunctionCoder(Coder):
 
         return "\n".join(show_diff)
 
-    def _update_files(self):
-        name = self.partial_response_function_call.get("name")
-        if name and name != "write_file":
-            raise ValueError(f'Unknown function_call name="{name}", use name="write_file"')
+    def get_edits(self):
+        chat_files = self.get_inchat_relative_files()
+        assert len(chat_files) == 1, chat_files
 
         args = self.parse_partial_args()
-        if not args:
-            return
 
-        content = args["content"]
-        path = self.get_inchat_relative_files()[0]
-        if self.allowed_to_edit(path, content):
-            return set([path])
+        res = chat_files[0], args["content"]
+        dump(res)
+        return [res]
 
-        return set()
+    def apply_edits(self, edits):
+        for path, content in edits:
+            full_path = self.abs_root_path(path)
+            self.io.write_text(full_path, content)
diff --git a/aider/sendchat.py b/aider/sendchat.py
index d840fb476..58b85f1da 100644
--- a/aider/sendchat.py
+++ b/aider/sendchat.py
@@ -55,7 +55,7 @@ def send_with_retries(
         stream=stream,
     )
     if functions is not None:
-        kwargs["functions"] = functions
+        kwargs["tools"] = [dict(type="functions", function=functions[0])]
     if extra_headers is not None:
         kwargs["extra_headers"] = extra_headers
     if max_tokens is not None: