Fix not imported 'validator' (#715)

otherwise `@validator("input_variables")` do not work
langchain-ai · Jan 24, 2023 · 18b1466 · 18b1466
1 parent 2824f36
commit 18b1466
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/modules/prompts/examples/custom_prompt_template.md b/docs/modules/prompts/examples/custom_prompt_template.md
@@ -34,7 +34,7 @@ Next, we'll create a custom prompt template that takes in the function name as i
 
 ```python
 from langchain.prompts import BasePromptTemplate
-from pydantic import BaseModel
+from pydantic import BaseModel, validator
 
 
 class FunctionExplainerPromptTemplate(BasePromptTemplate, BaseModel):