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This commit is motivated by the fact that the
linkMerge
andpickValue
fields were repeated in theSink
andWorkflowOutputParameter
types.To remove this repetition, these two fields have been isolated in a new type called
Sink
. The previousSink
type, which is now namedInputSink
extendsSink
with thesource
field, while a newOutputSink
type extendsSink
with theoutputSource
field.The
WorkflowInputParameter
type extends theInputSink
, while theWorkflowOutputParameter
type inherits fromOutputSink
. Note that this separation will be useful also for future extensions. For example, the proposedloop
feature will build upon theOutputSink
type to map the step outputs into the inputs of the next iteration.