{{ bos_token }}{% if messages[0]['role'] == 'system' %}{{ raise_exception('System role not supported') }}{% endif %}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if (message['role'] == 'assistant') %}{% set role = 'model' %}{% else %}{% set role = message['role'] %}{% endif %}{% if message['role'] == 'assistant' %}{{ '<start_of_turn>' + role + '
' }}{% generation %}{{ message['content'] | trim }}{% endgeneration %}{{ '<end_of_turn>
' }}{% else %}{{ '<start_of_turn>' + role + '
' + message['content'] | trim + '<end_of_turn>
' }}{% endif %}{% endfor %}{% if add_generation_prompt %}{{'<start_of_turn>model
'}}{% endif %}