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An IO object that does nothing (always empty, never writes), yet always succeeds. Can be used in place of a regular IO when there is nothing to read or output shall be discarded. Similar to "/dev/null" or equivalent.
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An IO object that does nothing (always empty, never writes), yet always succeeds. Can be used in place of a regular IO when there is nothing to read or the output shall be discarded, won't even close. Similar to
/dev/nullor equivalent.NOTES:
IO.nullsingletonKept as DRAFT, so we can discuss usefulness and refine.
See #16735 (comment)