This processor runs a sequence of processors (or processor sub-trees) in a specific order. The return value will be the result of the final processor.
depth-first node iteration when parsing the node trees. In layman's terms, this means that ApiOpenStudio works through the node tree from the tips (leafs) first, This is so that all inputs to parent processors have already been calculated.
This means that you cannot guarantee a state at any point (other than all inputs have been processed). In some cases, you may need to ensure a state, for example:
Sequential allows you to define state and ensure certain processors or sub-trees run in a specific order.
Nothing is pre-calculated. All processors within the
sequence input are run one after the other.