from typing import Sequence


def bitlist_to_int(bitlist: Sequence[int]) -> int:
    """Converts a sequence of bits to an integer.

    >>> from quantumflow.utils import bitlist_to_int
    >>> bitlist_to_int([1, 0, 0])
    4
    """
    return int(''.join([str(d) for d in bitlist]), 2)