DOC: Improve human input prompt in FewShotChatMessagePromptTemplate example (#29023)

Uvi-12 · Erick Friis · shinxi · commit 648f20aefc01 · 2025-08-21T02:05:42.000+08:00
Fixes #29010 

This PR updates the example for FewShotChatMessagePromptTemplate by
modifying the human input prompt to include a more descriptive and
user-friendly question format ('What is {input}?') instead of just
'{input}'. This change enhances clarity and usability in the
documentation example.

Co-authored-by: Erick Friis &lt;erick@langchain.dev&gt;
diff --git a/libs/core/langchain_core/prompts/few_shot.py b/libs/core/langchain_core/prompts/few_shot.py
@@ -282,7 +282,7 @@ class FewShotChatMessagePromptTemplate(
             ]
 
             example_prompt = ChatPromptTemplate.from_messages(
-                [('human', '{input}'), ('ai', '{output}')]
+            [('human', 'What is {input}?'), ('ai', '{output}')]
             )
 
             few_shot_prompt = FewShotChatMessagePromptTemplate(

Original file line number	Diff line number	Diff line change
`@@ -282,7 +282,7 @@ class FewShotChatMessagePromptTemplate(`
`282`	`282`	`]`
`283`	`283`
`284`	`284`	`example_prompt = ChatPromptTemplate.from_messages(`
`285`		`- [('human', '{input}'), ('ai', '{output}')]`
	`285`	`+ [('human', 'What is {input}?'), ('ai', '{output}')]`
`286`	`286`	`)`
`287`	`287`
`288`	`288`	`few_shot_prompt = FewShotChatMessagePromptTemplate(`