#3509 [Core feature] Improved error message with maptasks: using it within a task should error out Issue created by cosmicBboy Motivation: Why do you think this is important? Flytekit should raise a runtime error when map tasks are written in any of the following contexts: • When a user tries to write a

map_task

within a

task

function body

@task
def t1():
    map_task(...)(...)

• When a user tries to define a

map_task

at the module-level scope

@map_task
@task
def t1(): ...

or

@task
def t1(): ...


my_map_task = map_task()(t1)

Goal: What should the final outcome look like, ideally? The error should make it clear that `map_task`s can only be defined in workflow function bodies. Describe alternatives you've considered NA Propose: Link/Inline OR Additional context No response Are you sure this issue hasn't been raised already? ☑︎ Yes Have you read the Code of Conduct? ☑︎ Yes flyteorg/flyte