{%- for message in messages -%}
{%- set ns = namespace(text='') -%}
{%- if message['content'] is string -%}
{%- set ns.text = message['content'] -%}
{%- else -%}
{%- for item in message['content'] -%}
{%- if 'text' in item -%}
{%- set ns.text = ns.text + item.text -%}
{%- endif -%}
{%- endfor -%}
{%- endif -%}
{%- if task is defined and task == 'query' -%}
{{- bos_token + ns.text -}}
{%- else -%}
{{- '<|im_start|>user\n<image>Describe the image.<|im_end|>' -}}
{%- endif -%}
{%- endfor -%}