[PR] [bugfix][prompts] Fix format_string {text} variable collision [flink-agents]

["wenjin272 (via GitHub)" <gi...@apache.org>]

wenjin272 opened a new pull request, #792:
URL: https://github.com/apache/flink-agents/pull/792

   ## What is the purpose of the change
   
   Fix #785. `Prompt.format_string(text=...)` raised `TypeError: format_string() got multiple values for argument 'text'` whenever the template used `{text}` (or `{template}`) as a variable, because the internal positional parameter `text` collided with the user-passed kwarg.
   
   ## Brief change log
   
   - Rename the positional parameter in `utils.format_string` from `text` to `_template` — internal, non-public, called positionally everywhere, so no compatibility impact.
   - Add a regression test covering `{text}`/`{template}` template variables.
   
   ## Verifying this change
   
   `python -m pytest flink_agents/api/tests/test_prompt.py` — 7 passed.
   
   🤖 Generated with [Claude Code](https://claude.com/claude-code)


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Re: [PR] [bugfix][prompts] Fix format_string {text} variable collision [flink-agents]

["wenjin272 (via GitHub)" <gi...@apache.org>]

wenjin272 merged PR #792:
URL: https://github.com/apache/flink-agents/pull/792


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