You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cm_fireprint.m
    path of file: ./repos/spinw/external/colormap
    
    the code of the file until where you have to start completion: function cmap = cm_fireprint(n,varargin)

    
function cmap = cm_fireprint(n,varargin)
% colormap that increases linearly in lightness (with colors)
%
%   Colormap that increases linearly in lightness (such as a pure black to white
%   map) but incorporates additional colors that help to emphasize the
%   transitions and hence enhance the perception of the data.
%   This colormap is designed to be printer-friend