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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 grpc_fork_support_disabled():
 """Temporarily disable fork support in gRPC. Fork + exec has always been supported, but the recent fork handling code in gRPC (>= 1.15) results in extraneous error logs currently. For now we explicitly disable fork support for gRPC clients we create. """

    if LooseVersion(GRPC_VERSION) < '1.18.0':
        key = 'GRPC_ENABLE_FORK_SUPPORT'
        try:
            os.environ[key] = '0'
            yield
        finally:
            del os.environ[key]
    else:
        yield