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Exercise

Chat prompt templates

Given the importance of chat models in many LLM applications, LangChain provides functionality for creating prompt templates to structure messages to different chat roles.

The ChatPromptTemplate class has already been imported for you, and an LLM has already been defined.

Instructions

100 XP
  • Use ChatPromptTemplate.from_messages() to convert the role-message pairs into a chat prompt template.
  • Assign appropriate roles to the messages provided to create a conversation pattern.
  • Create an LCEL chain and invoke it with the input provided.