Pipes used during execute(). They are member variables so that they can be reused by later calls to execute(). Note that any file handles created during execute() will remain open and stored in these pipes, unless they are explicitly closed.
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Pipes used during execute(). They are member variables so that they can be reused by later calls to execute(). Note that any file handles created during execute() will remain open and stored in these pipes, unless they are explicitly closed.