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igorls/gemma4-e4b-classifier

sourceHugging Facegemmaupdated 4mo agoView on Hugging Face
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chat_template.jinja351 linesDownload Raw Back to root
1{%- macro format_parameters(properties, required, filter_keys=false) -%}2    {%- set standard_keys = ['description', 'type', 'properties', 'required', 'nullable'] -%}3    {%- set ns = namespace(found_first=false) -%}4    {%- for key, value in properties | dictsort -%}5        {%- set add_comma = false -%}6        {%- if not filter_keys or key not in standard_keys -%}7            {%- if ns.found_first %},{% endif -%}8            {%- set ns.found_first = true -%}9            {{ key }}:{10            {%- if value['description'] -%}11                description:<|"|>{{ value['description'] }}<|"|>12                {%- set add_comma = true -%}13            {%- endif -%}14            {%- if value['type'] | upper == 'STRING' -%}15                {%- if value['enum'] -%}16                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}17                    enum:{{ format_argument(value['enum']) }}18                {%- endif -%}19            {%- elif value['type'] | upper == 'ARRAY' -%}20                {%- if value['items'] is mapping and value['items'] -%}21                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}22                    items:{23                    {%- set ns_items = namespace(found_first=false) -%}24                    {%- for item_key, item_value in value['items'] | dictsort -%}25                        {%- if item_value is not none -%}26                            {%- if ns_items.found_first %},{% endif -%}27                            {%- set ns_items.found_first = true -%}28                            {%- if item_key == 'properties' -%}29                                properties:{30                                {%- if item_value is mapping -%}31                                    {{- format_parameters(item_value, value['items']['required'] | default([])) -}}32                                {%- endif -%}33                                }34                            {%- elif item_key == 'required' -%}35                                required:[36                                {%- for req_item in item_value -%}37                                    <|"|>{{- req_item -}}<|"|>38                                    {%- if not loop.last %},{% endif -%}39                                {%- endfor -%}40                                ]41                            {%- elif item_key == 'type' -%}42                                {%- if item_value is string -%}43                                    type:{{ format_argument(item_value | upper) }}44                                {%- else -%}45                                    type:{{ format_argument(item_value | map('upper') | list) }}46                                {%- endif -%}47                            {%- else -%}48                                {{ item_key }}:{{ format_argument(item_value) }}49                            {%- endif -%}50                        {%- endif -%}51                    {%- endfor -%}52                    }53                {%- endif -%}54            {%- endif -%}55            {%- if value['nullable'] %}56                {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}57                nullable:true58            {%- endif -%}59            {%- if value['type'] | upper == 'OBJECT' -%}60                {%- if value['properties'] is defined and value['properties'] is mapping -%}61                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}62                    properties:{63                    {{- format_parameters(value['properties'], value['required'] | default([])) -}}64                    }65                {%- elif value is mapping -%}66                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}67                    properties:{68                    {{- format_parameters(value, value['required'] | default([]), filter_keys=true) -}}69                    }70                {%- endif -%}71                {%- if value['required'] -%}72                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}73                    required:[74                    {%- for item in value['required'] | default([]) -%}75                        <|"|>{{- item -}}<|"|>76                        {%- if not loop.last %},{% endif -%}77                    {%- endfor -%}78                    ]79                {%- endif -%}80            {%- endif -%}81            {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}82            type:<|"|>{{ value['type'] | upper }}<|"|>}83        {%- endif -%}84    {%- endfor -%}85{%- endmacro -%}86{%- macro format_function_declaration(tool_data) -%}87    declaration:{{- tool_data['function']['name'] -}}{description:<|"|>{{- tool_data['function']['description'] -}}<|"|>88    {%- set params = tool_data['function']['parameters'] -%}89    {%- if params -%}90        ,parameters:{91        {%- if params['properties'] -%}92            properties:{ {{- format_parameters(params['properties'], params['required']) -}} },93        {%- endif -%}94        {%- if params['required'] -%}95            required:[96            {%- for item in params['required'] -%}97                <|"|>{{- item -}}<|"|>98                {{- ',' if not loop.last -}}99            {%- endfor -%}100            ],101        {%- endif -%}102        {%- if params['type'] -%}103            type:<|"|>{{- params['type'] | upper -}}<|"|>}104        {%- endif -%}105    {%- endif -%}106    {%- if 'response' in tool_data['function'] -%}107        {%- set response_declaration = tool_data['function']['response'] -%}108        ,response:{109        {%- if response_declaration['description'] -%}110            description:<|"|>{{- response_declaration['description'] -}}<|"|>,111        {%- endif -%}112        {%- if response_declaration['type'] | upper == 'OBJECT' -%}113            type:<|"|>{{- response_declaration['type'] | upper -}}<|"|>}114        {%- endif -%}115    {%- endif -%}116    }117{%- endmacro -%}118{%- macro format_argument(argument, escape_keys=True) -%}119    {%- if argument is string -%}120        {{- '<|"|>' + argument + '<|"|>' -}}121    {%- elif argument is boolean -%}122        {{- 'true' if argument else 'false' -}}123    {%- elif argument is mapping -%}124        {{- '{' -}}125        {%- set ns = namespace(found_first=false) -%}126        {%- for key, value in argument | dictsort -%}127            {%- if ns.found_first %},{% endif -%}128            {%- set ns.found_first = true -%}129            {%- if escape_keys -%}130                {{- '<|"|>' + key + '<|"|>' -}}131            {%- else -%}132                {{- key -}}133            {%- endif -%}134            :{{- format_argument(value, escape_keys=escape_keys) -}}135        {%- endfor -%}136        {{- '}' -}}137    {%- elif argument is sequence -%}138        {{- '[' -}}139        {%- for item in argument -%}140            {{- format_argument(item, escape_keys=escape_keys) -}}141            {%- if not loop.last %},{% endif -%}142        {%- endfor -%}143        {{- ']' -}}144    {%- else -%}145        {{- argument -}}146    {%- endif -%}147{%- endmacro -%}148{%- macro strip_thinking(text) -%}149    {%- set ns = namespace(result='') -%}150    {%- for part in text.split('<channel|>') -%}151        {%- if '<|channel>' in part -%}152            {%- set ns.result = ns.result + part.split('<|channel>')[0] -%}153        {%- else -%}154            {%- set ns.result = ns.result + part -%}155        {%- endif -%}156    {%- endfor -%}157    {{- ns.result | trim -}}158{%- endmacro -%}159 160{%- macro format_tool_response_block(tool_name, response) -%}161    {{- '<|tool_response>' -}}162    {%- if response is mapping -%}163        {{- 'response:' + tool_name + '{' -}}164        {%- for key, value in response | dictsort -%}165            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}166            {%- if not loop.last %},{% endif -%}167        {%- endfor -%}168        {{- '}' -}}169    {%- else -%}170        {{- 'response:' + tool_name + '{value:' + format_argument(response, escape_keys=False) + '}' -}}171    {%- endif -%}172    {{- '<tool_response|>' -}}173{%- endmacro -%}174 175{%- set ns = namespace(prev_message_type=None) -%}176{%- set loop_messages = messages -%}177{{- bos_token -}}178{#- Handle System/Tool Definitions Block -#}179{%- if (enable_thinking is defined and enable_thinking) or tools or messages[0]['role'] in ['system', 'developer'] -%}180    {{- '<|turn>system\n' -}}181    {#- Inject Thinking token at the very top of the FIRST system turn -#}182    {%- if enable_thinking is defined and enable_thinking -%}183        {{- '<|think|>\n' -}}184        {%- set ns.prev_message_type = 'think' -%}185    {%- endif -%}186    {%- if messages[0]['role'] in ['system', 'developer'] -%}187        {%- if messages[0]['content'] is string -%}188            {{- messages[0]['content'] | trim -}}189        {%- elif messages[0]['content'] is sequence -%}190            {%- for item in messages[0]['content'] -%}191                {{- item['text'] | trim + ' '-}}192            {%- endfor -%}193        {%- endif -%}194        {%- set loop_messages = messages[1:] -%}195    {%- endif -%}196    {%- if tools -%}197        {%- for tool in tools %}198            {{- '<|tool>' -}}199            {{- format_function_declaration(tool) | trim -}}200            {{- '<tool|>' -}}201        {%- endfor %}202        {%- set ns.prev_message_type = 'tool' -%}203    {%- endif -%}204    {{- '<turn|>\n' -}}205{%- endif %}206 207{#- Pre-scan: find last user message index for reasoning guard -#}208{%- set ns_turn = namespace(last_user_idx=-1) -%}209{%- for i in range(loop_messages | length) -%}210    {%- if loop_messages[i]['role'] == 'user' -%}211        {%- set ns_turn.last_user_idx = i -%}212    {%- endif -%}213{%- endfor -%}214 215{#- Loop through messages -#}216{%- for message in loop_messages -%}217    {%- if message['role'] != 'tool' -%}218    {%- set ns.prev_message_type = None -%}219    {%- set role = 'model' if message['role'] == 'assistant' else message['role'] -%}220    {#- Detect continuation: suppress duplicate <|turn>model when previous non-tool message was also assistant -#}221    {%- set prev_nt = namespace(role=None, found=false) -%}222    {%- if loop.index0 > 0 -%}223        {%- for j in range(loop.index0 - 1, -1, -1) -%}224            {%- if not prev_nt.found -%}225                {%- if loop_messages[j]['role'] != 'tool' -%}226                    {%- set prev_nt.role = loop_messages[j]['role'] -%}227                    {%- set prev_nt.found = true -%}228                {%- endif -%}229            {%- endif -%}230        {%- endfor -%}231    {%- endif -%}232    {%- set continue_same_model_turn = (role == 'model' and prev_nt.role == 'assistant') -%}233    {%- if not continue_same_model_turn -%}234        {{- '<|turn>' + role + '\n' }}235    {%- endif -%}236 237    {#- Render reasoning/reasoning_content as thinking channel -#}238    {%- set thinking_text = message.get('reasoning') or message.get('reasoning_content') -%}239    {%- if thinking_text and loop.index0 > ns_turn.last_user_idx and message.get('tool_calls') -%}240        {{- '<|channel>thought\n' + thinking_text + '\n<channel|>' -}}241    {%- endif -%}242 243            {%- if message['tool_calls'] -%}244                {%- for tool_call in message['tool_calls'] -%}245                    {%- set function = tool_call['function'] -%}246                    {{- '<|tool_call>call:' + function['name'] + '{' -}}247                    {%- if function['arguments'] is mapping -%}248                        {%- set ns_args = namespace(found_first=false) -%}249                        {%- for key, value in function['arguments'] | dictsort -%}250                            {%- if ns_args.found_first %},{% endif -%}251                            {%- set ns_args.found_first = true -%}252                            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}253                        {%- endfor -%}254                    {%- elif function['arguments'] is string -%}255                        {{- function['arguments'] -}}256                    {%- endif -%}257                    {{- '}<tool_call|>' -}}258                {%- endfor -%}259                {%- set ns.prev_message_type = 'tool_call' -%}260            {%- endif -%}261 262            {%- set ns_tr_out = namespace(flag=false) -%}263            {%- if message.get('tool_responses') -%}264                {#- Legacy: tool_responses embedded on the assistant message (Google/Gemma native) -#}265                {%- for tool_response in message['tool_responses'] -%}266                    {{- format_tool_response_block(tool_response['name'] | default('unknown'), tool_response['response']) -}}267                    {%- set ns_tr_out.flag = true -%}268                    {%- set ns.prev_message_type = 'tool_response' -%}269                {%- endfor -%}270            {%- elif message.get('tool_calls') -%}271                {#- OpenAI Chat Completions: forward-scan consecutive role:tool messages -#}272                {%- set ns_tool_scan = namespace(stopped=false) -%}273                {%- for k in range(loop.index0 + 1, loop_messages | length) -%}274                    {%- if ns_tool_scan.stopped -%}275                    {%- elif loop_messages[k]['role'] != 'tool' -%}276                        {%- set ns_tool_scan.stopped = true -%}277                    {%- else -%}278                        {%- set follow = loop_messages[k] -%}279                        {#- Resolve tool_call_id to function name -#}280                        {%- set ns_tname = namespace(name=follow.get('name') | default('unknown')) -%}281                        {%- for tc in message['tool_calls'] -%}282                            {%- if tc.get('id') == follow.get('tool_call_id') -%}283                                {%- set ns_tname.name = tc['function']['name'] -%}284                            {%- endif -%}285                        {%- endfor -%}286                        {#- Handle content as string or content-parts array -#}287                        {%- set tool_body = follow.get('content') -%}288                        {%- if tool_body is string -%}289                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}290                        {%- elif tool_body is sequence and tool_body is not string -%}291                            {%- set ns_txt = namespace(s='') -%}292                            {%- for part in tool_body -%}293                                {%- if part.get('type') == 'text' -%}294                                    {%- set ns_txt.s = ns_txt.s + (part.get('text') | default('')) -%}295                                {%- endif -%}296                            {%- endfor -%}297                            {{- format_tool_response_block(ns_tname.name, ns_txt.s) -}}298                        {%- else -%}299                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}300                        {%- endif -%}301                        {%- set ns_tr_out.flag = true -%}302                        {%- set ns.prev_message_type = 'tool_response' -%}303                    {%- endif -%}304                {%- endfor -%}305            {%- endif -%}306 307            {%- set captured_content -%}308            {%- if message['content'] is string -%}309                {%- if role == 'model' -%}310                    {{- strip_thinking(message['content']) -}}311                {%- else -%}312                    {{- message['content'] | trim -}}313                {%- endif -%}314            {%- elif message['content'] is sequence -%}315                {%- for item in message['content'] -%}316                    {%- if item['type'] == 'text' -%}317                        {%- if role == 'model' -%}318                            {{- strip_thinking(item['text']) -}}319                        {%- else -%}320                            {{- item['text'] | trim -}}321                        {%- endif -%}322                    {%- elif item['type'] == 'image' -%}323                        {{- '<|image|>' -}}324                        {%- set ns.prev_message_type = 'image' -%}325                    {%- elif item['type'] == 'audio' -%}326                        {{- '<|audio|>' -}}327                        {%- set ns.prev_message_type = 'audio' -%}328                    {%- elif item['type'] == 'video' -%}329                        {{- '<|video|>' -}}330                        {%- set ns.prev_message_type = 'video' -%}331                    {%- endif -%}332                {%- endfor -%}333            {%- endif -%}334            {%- endset -%}335 336            {{- captured_content -}}337            {%- set has_content = captured_content | trim | length > 0 -%}338 339        {%- if ns.prev_message_type == 'tool_call' and not ns_tr_out.flag -%}340            {{- '<|tool_response>' -}}341        {%- elif not (ns_tr_out.flag and not has_content) -%}342            {{- '<turn|>\n' -}}343        {%- endif -%}344    {%- endif -%}345{%- endfor -%}346 347{%- if add_generation_prompt -%}348    {%- if ns.prev_message_type != 'tool_response' and ns.prev_message_type != 'tool_call' -%}349        {{- '<|turn>model\n' -}}350    {%- endif -%}351{%- endif -%}