Fix chat_template

chat_template.jinja

@@ -18,6 +18,8 @@
                 {{- item }}
             {%- endif -%}
         {%- endfor -%}
+    {%- elif content is none -%}
+        {{- '' }}
     {%- else -%}
         {{- content }}
     {%- endif -%}
@@ -118,7 +120,11 @@
             {%- endfor -%}
             
             {{- toolcall_end_token}}
-            {%- set last_tool_call.name = message.tool_calls[-1].name -%}
+            {%- if message.tool_calls[-1].function -%}
+                {%- set last_tool_call.name = message.tool_calls[-1].function.name -%}
+            {%- else -%}
+                {%- set last_tool_call.name = message.tool_calls[-1].name -%}
+            {%- endif -%}
         {%- else -%}
             {%- set last_tool_call.name = none -%}
         {%- endif -%}