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: GB_read_vrml_fast_BA.m
    path of file: ./repos/GIBBON/studies/2021_Nataliya_Perevoshchikova_wrist_project/functions
    
    the code of the file until where you have to start completion: function model_wrl = GB_read_vrml_fast_BA(filename)
% BA: I created this for single output as structure

    
function model_wrl = GB_read_vrml_fast_BA(filename)
% BA: I created this for single output as structure

MIMICS_10_KEY = '#coordinates written in 1mm / 10000';
MIMICS_13_KEY = '#coordinates written in 1mm / 0';

fid = fopen(filename, 'r');
if (fid == -1)
    fprintf(1, '\aError: unable to open input IV file %s.\n',filename);
    return,
end