def METHOD_NAME(self):
    """Convert dict of 'h#' coefficients into a list
    of coefficients in increasing order, i.e. ['h0','h1','h2'].
    Returns
    -------
    np.ndarray
        The sequence of coefficient values.
    """
    # Parse 'h#' keyword arguments as coefficients
    for c in range(self.nchannel_fitted):
        if self.nchannel_fitted > 1:
            chan = self.fitted_channels[c]
        else:
            chan = 0
        for i in range(6):
            try:
                if chan == 0:
                    self.coeffs[c, i] = self.parameters.dict[f'h{i}'][0]
                else:
                    self.coeffs[c, i] = \
                        self.parameters.dict[f'h{i}_{chan}'][0]
            except KeyError:
                pass