template_is_valid() — langchain Function Reference

Architecture documentation for the template_is_valid() function in few_shot.py from the langchain codebase.

Function python PromptManagement ExampleSelection

Entity Profile

PromptManagement→ ExampleSelection→ template_is_valid() — langchain Function Reference

Dependency Diagram

graph TD
  95460c61_1d5c_8632_deea_353e54666a50["template_is_valid()"]
  4a8cd875_a116_c859_9f43_6737c2811ee4["FewShotPromptTemplate"]
  95460c61_1d5c_8632_deea_353e54666a50 -->|defined in| 4a8cd875_a116_c859_9f43_6737c2811ee4
  style 95460c61_1d5c_8632_deea_353e54666a50 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/prompts/few_shot.py lines 156–172

    def template_is_valid(self) -> Self:
        """Check that prefix, suffix, and input variables are consistent."""
        if self.validate_template:
            check_valid_template(
                self.prefix + self.suffix,
                self.template_format,
                self.input_variables + list(self.partial_variables),
            )
        elif self.template_format:
            self.input_variables = [
                var
                for var in get_template_variables(
                    self.prefix + self.suffix, self.template_format
                )
                if var not in self.partial_variables
            ]
        return self