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#ask-the-community
Title
# ask-the-community
r

Ryuu

01/10/2024, 8:15 AM
How Flyte Workflow can check the output of 1 node task is match to input of another node task
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Samhita Alla

01/10/2024, 8:43 AM
you mean the type?
r

Ryuu

01/10/2024, 8:52 AM
@Samhita Alla I Want to read and understand in-depth about Flyte's data type checking mechanism, that is, if we have 2 tasks, task1 and task2. Where input task2 is output task1. So how can FLyte confirm that the data type of Input task2 matches the data type of output task1. I wonder about this problem.
r

Ryuu

01/10/2024, 10:23 AM
@Samhita Alla I have heard that all task and workflow will transform and storage in protobuf. So that mean the logic maping task and checking dataype is in Flytekit, And the workflow which have true logic could storage in protobuf in Flyte admin right
s

Samhita Alla

01/10/2024, 1:40 PM
protobuf is for general representation of data. you can find more info here: https://docs.flyte.org/projects/flyteidl/en/stable/index.html