from typing import List


def getValuesInInterval(dataTupleList: List, start: float, end: float) -> List:
    """
    Gets the values that exist within an interval

    The function assumes that the data is formated as
    [(t1, v1a, v1b, ...), (t2, v2a, v2b, ...)]
    """

    intervalDataList = []
    for dataTuple in dataTupleList:
        time = dataTuple[0]
        if start <= time and end >= time:
            intervalDataList.append(dataTuple)

    return intervalDataList