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Hello.. running into some sort of variable binding bug. Can anyone help me fix this?

I have a task which takes in a `Dict` as input. One of the values in that `Dict` is returned from previous task and Flyte is not able to bind the value.
I get this <https://github.com/flyteorg/flytekit/blob/8d7efb09c437a0b4eaf3eacf0381b9ee15dfc179/flytekit/core/promise.py#L614|AssertionError>
```AssertionError: this should be a Dictionary type and it is not: &lt;class 'dict'&gt; vs union_type {
  variants {
    map_value_type {
      simple: STRING
    }
    structure {
      tag: "Typed Dict"
    }
  }
  variants {
    simple: NONE
    structure {
      tag: "none"
    }
  }
}```

E.g.
```result1 = a_generic_python_task() #returns a str
# a_custom_plugin_task accepts a variable x of type
# typing.Dict[str,str]
result2 = a_custom_plugin_task(x={'key':result1}) ```

The intermediate type of `result1` is `Pomise(node:n0.o0)` which is expected but i think is causing an error?

<@U03KZJ7AXKR>, you can't build inputs on the fly using outputs of upstream tasks. Is there any way you can modify `a_generic_python_task` to return the dictionary you're passing to `a_custom_plugin_task`? Another option would be to add a step in the middle to build the dictionary prior to calling `a_custom_plugin_task` or maybe building the dictionary as part of `a_custom_plugin_task`