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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _wres(parallel, progs, fresources=None, ensure_mem=None):
 """Add resource information to the parallel environment on required programs and files. Enables spinning up required machines and operating in non-shared filesystem environments. progs -- Third party tools used in processing fresources -- Required file-based resources needed. These will be transferred on non-shared filesystems. ensure_mem -- Dictionary of required minimum memory for programs used. Ensures enough memory gets allocated on low-core machines. """

    parallel = copy.deepcopy(parallel)
    parallel["progs"] = progs
    if fresources:
        parallel["fresources"] = fresources
    if ensure_mem:
        parallel["ensure_mem"] = ensure_mem
    return parallel