Converts a list of dimensions’ indices into a numeric value index.

        Args:
            indices(list): list of dimension's indices.

        Returns:
           num(int): numeric value index.

def get_value_index(self, indices):
        """Converts a list of dimensions’ indices into a numeric value index.

        Args:
            indices(list): list of dimension's indices.

        Returns:
           num(int): numeric value index.

        """
        size = self['size'] if self.get('size') else self['dimension']['size']
        ndims = len(size)
        mult = 1
        num = 0
        for idx, dim in enumerate(size):
            mult *= size[ndims - idx] if (idx > 0) else 1
            num += mult * indices[ndims - idx - 1]
        return num