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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 get_string_camel_patterns(cls, name, min_length=0):
 """ Finds all permutations of possible camel casing of the given name :param name: str, the name we need to get all possible permutations and abbreviations for :param min_length: int, minimum length we want for abbreviations :return: list(list(str)), list casing permutations of list of abbreviations """

        # Have to check for longest first and remove duplicates
        patterns = []
        abbreviations = list(set(cls._get_abbreviations(name, output_length=min_length)))
        abbreviations.sort(key=len, reverse=True)

        for abbr in abbreviations:
            # We won't check for abbreviations that are stupid eg something with apparent camel casing within
            # the word itself like LeF, sorting from:
            # http://stackoverflow.com/questions/13954841/python-sort-upper-case-and-lower-case
            casing_permutations = list(set(cls._get_casing_permutations(abbr)))
            casing_permutations.sort(key=lambda v: (v.upper(), v[0].islower(), len(v)))
            permutations = [permutation for permutation in casing_permutations if
                            cls.is_valid_camel(permutation) or len(permutation) <= 2]
            if permutations:
                patterns.append(permutations)

        return patterns