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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 fix_examples_dir(lib_dir):
 """rename examples dir to ``examples``"""

    for x in lib_dir.dirs():
        if x.name.lower() == EXAMPLES:
            return
    for x in lib_dir.dirs():
        if x.name.lower() == EXAMPLES:
            _fix_dir(x)
            return
    for x in lib_dir.dirs():
        if 'example' in x.name.lower():
            _fix_dir(x)
            return
    for x in lib_dir.dirs():
        if len(files_multi_pattern(x, INO_PATTERNS)):
            _fix_dir(x)
            return