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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _is_leap_year(year):
 """Determine if a year is leap year. Parameters year : numeric Returns ------- isleap : array of bools """

    isleap = ((np.mod(year, 4) == 0) &
              ((np.mod(year, 100) != 0) | (np.mod(year, 400) == 0)))
    return isleap