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5.
Usage Notes
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details on specific usage notes for this actor
If there is the possibility that the file being read in is empty (i.e. has size 0), then the zeroToken port should be checked every time before trying to read the output port.
This is because, at the time of writing, array tokens cannot be of size 0, and in PN domains it is impossible to check if there are going to be tokens on a port.
