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a b/chat_templates/saiga.jinja
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{% if messages[0]['role'] == 'system' %}
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    {% set offset = 1 %}
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{% else %}
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    {% set offset = 0 %}
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{% endif %}
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{% for message in messages %}
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    {% if (message['role'] == 'user') != (loop.index0 % 2 == offset) %}
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        {{ raise_exception('Conversation roles must alternate user/bot/user/bot/...') }}
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    {% endif %}
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    {% if message['role'] == 'assistant' %}
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        {{ set role = 'bot' }}
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    {% else %}
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        {{ set role = message['role'] }}
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    {% endif %}
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    {{ bos_token + role + '\n' + message['content'] | trim + eos_token }}
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{% endfor %}
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{% if add_generation_prompt %}
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    {{ bos_token + 'bot\n' }}
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{% endif %}