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: spm_mnc2nifti.m
    path of file: ./repos/ExploreASL/External/SPMmodified
    
    the code of the file until where you have to start completion: function [N,cdf] = spm_mnc2nifti(fname,opts)
% Import MINC images into NIfTI
% FORMAT spm_mnc2nifti(fname)
% fname - a MINC filename
% opts  - options structure
%
% N     - NIfTI object (written in current directory)
% cdf   - NetCDF data structure
% 
% The MINC file format was developed by Peter Neelin at the Montreal
% Neurological Institute, and is based upon the NetCDF libraries.
% The NetCDF documentation specifically recommends that people do not
% write their own libraries for accessing the data.  This suggestion
% was ignored.
%
% See: http://en.wikibooks.org/wiki/MINC
%__________________________________________________________________________
% Copyright (C) 2005-20
    
function str = dtypestr(i)
%==========================================================================
function str = dtypestr(i)
% Returns a string appropriate for reading or writing the CDF data-type.
types = char('uint8','uint8','int16','int32','float32','float64');
str   = deblank(types(i,:));


%==========================================================================
% function imax = get_imax(fp, cdf, strng, def, dim)
%==========================================================================
function imax = get_imax(fp, cdf, strng, def, dim)
dim  = fliplr(dim);
str  = findvar(cdf.var_array,strng);

if ~isempty(str) && str.nc_type == 6
    fseek(fp,str.begin,'bof');
    nel  = str.vsize/(spm_type(dtypestr(str.nc_type),'bits')/8);
    imax = fread(fp,nel,dtypestr(str.nc_type))';
    resh = ones(1,numel(dim));
    resh(numel(dim)+1-str.dimid) = dim(str.dimid);
    imax = reshape(imax,resh);
else
    imax = def;
end