from sage.finance.time_series cimport TimeSeries
cdef class HMM_Util:
cpdef normalize_probability_TimeSeries(self, TimeSeries T, Py_ssize_t i, Py_ssize_t j)
cpdef TimeSeries initial_probs_to_TimeSeries(self, pi, bint normalize)
cpdef TimeSeries state_matrix_to_TimeSeries(self, A, int N, bint normalize)
