Apertus-8B-Instruct-2509-6bit / chat_template.jinja
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{%- macro render_typescript_type(param_spec, required_params, is_nullable=false) -%}
{%- if param_spec.type == "array" -%}
{%- if param_spec['items'] -%}
{%- if param_spec['items']['type'] == "string" -%}
{{- "string[]" }}
{%- elif param_spec['items']['type'] == "number" -%}
{{- "number[]" }}
{%- elif param_spec['items']['type'] == "integer" -%}
{{- "number[]" }}
{%- elif param_spec['items']['type'] == "boolean" -%}
{{- "boolean[]" }}
{%- else -%}
{%- set inner_type = render_typescript_type(param_spec['items'], required_params) -%}
{%- if inner_type == "object | object" or inner_type|length > 50 -%}
{{- "any[]" }}
{%- else -%}
{{- inner_type + "[]" }}
{%- endif -%}
{%- endif -%}
{%- if param_spec.nullable -%}
{{- " | null" }}
{%- endif -%}
{%- else -%}
{{- "any[]" }}
{%- if param_spec.nullable -%}
{{- " | null" }}
{%- endif -%}
{%- endif -%}
{%- elif param_spec.type is defined and param_spec.type is iterable and param_spec.type is not string and param_spec.type is not mapping and param_spec.type[0] is defined -%}
{#- Handle array of types like ["object", "object"] from Union[dict, list] #}
{%- if param_spec.type | length > 1 -%}
{{- param_spec.type | join(" | ") }}
{%- else -%}
{{- param_spec.type[0] }}
{%- endif -%}
{%- elif param_spec.oneOf -%}
{#- Handle oneOf schemas - check for complex unions and fallback to any #}
{%- set has_object_variants = false -%}
{%- for variant in param_spec.oneOf -%}
{%- if variant.type == "object" -%}
{%- set has_object_variants = true -%}
{%- endif -%}
{%- endfor -%}
{%- if has_object_variants and param_spec.oneOf|length > 1 -%}
{{- "any" }}
{%- else -%}
{%- for variant in param_spec.oneOf -%}
{{- render_typescript_type(variant, required_params) -}}
{%- if variant.description %}
{{- "// " + variant.description }}
{%- endif -%}
{%- if variant.default is defined %}
{{ "// default: " + variant.default|tojson }}
{%- endif -%}
{%- if not loop.last %}
{{- " | " }}
{% endif -%}
{%- endfor -%}
{%- endif -%}
{%- elif param_spec.type == "string" -%}
{%- if param_spec.enum -%}
{{- '"' + param_spec.enum|join('" | "') + '"' -}}
{%- else -%}
{{- "string" }}
{%- if param_spec.nullable %}
{{- " | null" }}
{%- endif -%}
{%- endif -%}
{%- elif param_spec.type == "number" -%}
{{- "number" }}
{%- elif param_spec.type == "integer" -%}
{{- "number" }}
{%- elif param_spec.type == "boolean" -%}
{{- "boolean" }}
{%- elif param_spec.type == "object" -%}
{%- if param_spec.properties -%}
{{- "{\n" }}
{%- for prop_name, prop_spec in param_spec.properties.items() -%}
{{- prop_name -}}
{%- if prop_name not in (param_spec.required or []) -%}
{{- "?" }}
{%- endif -%}
{{- ": " }}
{{ render_typescript_type(prop_spec, param_spec.required or []) }}
{%- if not loop.last -%}
{{-", " }}
{%- endif -%}
{%- endfor -%}
{{- "}" }}
{%- else -%}
{{- "object" }}
{%- endif -%}
{%- else -%}
{{- "any" }}
{%- endif -%}
{%- endmacro -%}
{%- macro render_tools(tools) -%}
{%- for tool in tools %}
{{- "// " + tool.description + "\n" }}
{{- "type "+ tool.name + " = " }}
{%- if tool.parameters and tool.parameters.properties %}
{{- "(_: {\n" }}
{%- for param_name, param_spec in tool.parameters.properties.items() %}
{%- if param_spec.description %}
{{- "// " + param_spec.description + "\n" }}
{%- endif %}
{{- param_name }}
{%- if param_name not in (tool.parameters.required or []) -%}
{{- "?" }}
{%- endif -%}
{{- ": " }}
{{- render_typescript_type(param_spec, tool.parameters.required or []) }}
{%- if param_spec.default is defined -%}
{%- if param_spec.enum %}
{{- ", // default: " + param_spec.default }}
{%- elif param_spec.oneOf %}
{{- "// default: " + param_spec.default }}
{%- else %}
{{- ", // default: " + param_spec.default|tojson }}
{%- endif -%}
{%- endif -%}
{%- if not loop.last %}
{{- ",\n" }}
{%- else %}
{{- "\n" }}
{%- endif -%}
{%- endfor %}
{{- "}) => any;" }}
{%- else -%}
{{- "() => any;" }}
{%- endif -%}
{%- if not loop.last -%}
{{- "\n" }}
{%- endif -%}
{%- endfor %}
{%- endmacro -%}
{{ bos_token }}
{%- set system_token = '<|system_start|>' -%}
{%- set end_system_token = '<|system_end|>' -%}
{%- set developer_token = '<|developer_start|>' -%}
{%- set end_developer_token = '<|developer_end|>' -%}
{%- set user_token = '<|user_start|>' -%}
{%- set end_user_token = '<|user_end|>' -%}
{%- set assistant_token = '<|assistant_start|>' -%}
{%- set end_assistant_token = '<|assistant_end|>' -%}
{%- set inner_token = '<|inner_prefix|>' -%}
{%- set outer_token = '<|inner_suffix|>' -%}
{%- set tool_calls_token = '<|tools_prefix|>' -%}
{%- set end_tool_calls_token = '<|tools_suffix|>' -%}
{%- set ns = namespace(in_assistant=false, in_tool=false, in_inner=false, assistant_format=none) -%}
{%- if messages and messages[0].role == 'system' -%}
{%- if "content" in messages[0] -%}
{%- if messages[0].content is string -%}
{{ system_token + messages[0].content + end_system_token }}
{%- elif messages[0].content is mapping and "text" in messages[0].content -%}
{{ system_token + messages[0].content.text + end_system_token }}
{%- else -%}
{{- raise_exception("Invalid system message") -}}
{%- endif -%}
{%- else -%}
{{- raise_exception("Invalid system message") -}}
{%- endif -%}
{%- set loop_messages = messages[1:] -%}
{%- else -%}
{{ system_token + 'You are Apertus, a helpful assistant created by the SwissAI initiative.\nKnowledge cutoff: 2024-04\nCurrent date: ' + strftime_now('%Y-%m-%d') + end_system_token }}
{%- set loop_messages = messages -%}
{%- endif -%}
{{ developer_token + 'Deliberation: ' }}
{%- if enable_thinking is defined and enable_thinking -%}
{{ 'enabled\n' }}
{%- else -%}
{{ 'disabled\n' }}
{%- endif -%}
{%- if tools is defined and tools -%}
{{ 'Tool Capabilities:\n' + render_tools(tools) }}
{%- else -%}
{{ 'Tool Capabilities: disabled' }}
{%- endif -%}
{{ end_developer_token }}
{%- for message in loop_messages -%}
{%- if message.role == 'user' -%}
{%- set ns.in_inner = false -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- set ns.in_tool = false -%}
{%- endif -%}
{%- if ns.in_assistant -%}
{{ end_assistant_token }}
{%- set ns.in_assistant = false -%}
{%- endif -%}
{%- if "content" in message -%}
{{ user_token }}
{%- if message.content is string -%}
{{ message.content }}
{%- elif message.content is mapping and "parts" in message.content -%}
{%- set parts = message.content.parts -%}
{%- for part in parts -%}
{%- if part.type == "text" -%}
{{ part.text }}
{%- else -%}
{{- raise_exception("Invalid user part: " + part.type) -}}
{%- endif -%}
{%- endfor -%}
{%- else -%}
{{- raise_exception("Invalid user message: " + message.role) -}}
{%- endif -%}
{{ end_user_token }}
{%- endif -%}
{%- elif message.role == 'assistant' -%}
{%- if not ns.in_assistant -%}
{{ assistant_token }}
{%- set ns.in_assistant = true -%}
{%- endif -%}
{%- if "content" in message -%}
{%- if message.content is string and (ns.assistant_format is none or ns.assistant_format == "string") -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- set ns.in_tool = false -%}
{%- endif -%}
{%- set ns.assistant_format = "string" -%}
{{ message.content }}
{%- elif message.content is mapping and "blocks" in message.content and (ns.assistant_format is none or ns.assistant_format == "mapping") -%}
{%- set ns.assistant_format = "mapping" -%}
{%- set blocks = message.content.blocks -%}
{%- for block in blocks -%}
{%- if block.type == 'thoughts' -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- set ns.in_tool = false -%}
{%- endif -%}
{%- if not ns.in_inner -%}
{%- set ns.in_inner = true -%}
{{ inner_token }}
{%- endif -%}
{{ block.text }}
{%- elif block.type == 'tool_calls' -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- set ns.in_tool = false -%}
{%- endif -%}
{%- if ns.in_inner and not loop.first and block.calls|length == 1 and block.calls[0].name == 'display_answers' -%}
{%- set ns.in_inner = false -%}
{{ outer_token }}
{%- endif -%}
{{ tool_calls_token + '[' }}
{%- for tool_call in block.calls -%}
{{- '{"' + tool_call.name + '": ' + tool_call.arguments + '}' }}
{%- if not loop.last -%}
{{- ", " }}
{%- endif -%}
{%- endfor -%}
{{ ']' + end_tool_calls_token }}
{%- elif block.type == 'tool_outputs' -%}
{%- if ns.in_tool -%}
{{- raise_exception("Cannot have both tool outputs as separate messages and tool outputs as blocks") -}}
{%- endif -%}
{{ '[' }}
{%- for tool_output in block.outputs -%}
{{- tool_output.output }}
{%- if not loop.last -%}
{{- ", " }}
{%- endif -%}
{%- endfor -%}
{{- ']' }}
{%- elif block.type == 'response' -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- set ns.in_tool = false -%}
{%- endif -%}
{%- if (not loop.first and ns.in_inner) or (ns.in_assistant and ns.in_inner) -%}
{%- set ns.in_inner = false -%}
{{ outer_token }}
{%- endif -%}
{{ block.text }}
{%- else -%}
{{- raise_exception("Invalid assistant block type: " + block.type) -}}
{%- endif -%}
{%- endfor -%}
{%- else -%}
{{- raise_exception("Invalid assistant content") -}}
{%- endif -%}
{%- else -%}
{{- raise_exception("Invalid assistant message") -}}
{%- endif -%}
{%- if "tool_calls" in message and message.tool_calls -%}
{{ tool_calls_token + '[' }}
{%- for tool_call in message.tool_calls -%}
{%- if tool_call.type == 'function' -%}
{%- set function = tool_call.function -%}
{{- '{"' + function.name + '": ' + function.arguments + '}' }}
{%- if not loop.last -%}
{{- ", " }}
{%- endif -%}
{%- else -%}
{{- raise_exception("Invalid tool call type: " + tool_call.type) -}}
{%- endif -%}
{%- endfor -%}
{{ ']' + end_tool_calls_token }}
{%- endif -%}
{%- elif message.role == 'tool' -%}
{%- if not ns.in_assistant -%}
{{- raise_exception("Tool message outside of assistant") -}}
{%- endif -%}
{%- if not ns.in_tool -%}
{{ '[' }}
{%- set ns.in_tool = true -%}
{%- else -%}
{{ ", "}}
{%- endif -%}
{{ message.content }}
{%- else -%}
{{- raise_exception("Invalid message role") -}}
{%- endif -%}
{%- endfor -%}
{%- if ns.in_tool -%}
{{ ']' }}
{%- endif -%}
{%- if add_generation_prompt -%}
{{ assistant_token }}
{%- endif -%}