LangChain - Chains and LCEL
Which of the following is the correct way to create a
SequentialChain with two chains named chain1 and chain2?Which of the following is the correct way to create a SequentialChain with two chains named chain1 and chain2?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall SequentialChain constructor
It requires a list of chains and lists of input and output variable names.Step 2: Check each option's syntax
Only SequentialChain(chains=[chain1, chain2], input_variables=["input"], output_variables=["output"]) correctly uses named parameters with lists for chains and variables.Final Answer:
SequentialChain(chains=[chain1, chain2], input_variables=["input"], output_variables=["output"]) -> Option BQuick Check:
Correct constructor syntax = SequentialChain(chains=[chain1, chain2], input_variables=["input"], output_variables=["output"]) [OK]
Quick Trick: Look for named parameters and list brackets [OK]
Common Mistakes:
- Passing chains without list brackets
- Missing input/output variable lists
- Using plus operator to combine chains
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