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If I understand what you’re asking, then yes!

def some_data() -> int:
    # dummy function -- this can work with whatever types you want
    return 1

# Then, somewhere else...
# Note that the parameter name corresponds to the function above
# That's how you tell Hamilton to use the prior function
def data_based_on_the_data_above(some_data: int) -> int:
    return some_data + 1

Does this make sense? Basically this is the whole reason we have hamilton — you use the parameter names to “inject” and chain them together.