def first_n_fibonacci_numbers(n):
    """Return the list of the first 'n' fibonacci numbers.

    :param n: The number of the fibonacci numbers, so that len(result) == n
    :return: The list of the first fibonacci numbers with length 'n'
    """
    result = []
    count = 0
    a, b = 0, 1
    while count < n:
        result.append(b)
        count += 1
        a, b = b, a + b
    return result