Export this from ComfyUI with Export (API), not Save — the
two formats are different and only the API one can be submitted.
Then put a placeholder where each value goes. A placeholder that is the
whole value keeps its type, so
"steps": {{ '{{steps}}' }} sends the number 20 rather than the
text “20”; one inside a longer string is substituted as text, so
"{{ '{{prompt}}' }}, masterpiece" works. Anything you leave out
takes its default.
Available:
{% for name in placeholders %}{{ '{{' ~ name ~ '}}' }}{{ ", " if not loop.last }}{% endfor %}.
{{ '{{prompt}}' }} is required — without it every image would
be the same.