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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 branch_type(cls, branch):
 """ Return the string representation for the type of a branch """

        typename = branch.GetClassName()
        if not typename:
            leaf = branch.GetListOfLeaves()[0]
            typename = leaf.GetTypeName()
            # check if leaf has multiple elements
            leaf_count = leaf.GetLeafCount()
            if leaf_count:
                length = leaf_count.GetMaximum()
            else:
                length = leaf.GetLen()
            if length > 1:
                typename = '{0}[{1:d}]'.format(typename, length)
        return typename