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Exercise

Runnable lambdas

The RunnableLambda class is a crucial component in a hybrid retrieval chain. Before you use it to execute a vector retriever, let's first practice using it to convert a Python function into an LCEL runnable.

The user-defined reverse() function takes a string and returns it in reverse order. Update the code to return the input string in reverse.

Instructions

100 XP
  • Convert the reverse() function into an LCEL runnable.
  • Call the reverse_chain runnable to reverse the string provided.