Parameters: is a kind of variable which is is used as sending & retriving values for a called function/action
Input OutPut Parameters (IOP) can be of two types- > ACTION IOP & TEST IOP
Action IOP- belong to a particular action
Test IOP - belong to whole Test ( like global to all actions)
Input Parameter- to provide input to an action/Test
Output Parameter -An action/Test will return these value
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