def remove_copies(data: list) -> list:
    """Creates a unique list of arrays given a list of arrays containing
    identical arrays.

    Param:
        data (list[list[float or int]]): a list of lists of comparable items

    Return
        arrays: the unique list with no repeated arrays
    """
    arrays = []
    for a in data:
        # Check if a is in arrays
        contained = False
        for array in arrays:
            # Check if 'a' and 'array' are equal
            equal = True
            for i in range(len(array)):
                if a[i] != array[i]:
                    equal = False
                    break

            if equal:
                contained = True
        if not contained:
            arrays.append(a)
    return arrays