How to use the jsdoc/fs.toDir function in jsdoc

staticFiles.forEach(function(fileName) {
    var toDir = fs.toDir( fileName.replace(fromDir, outdir) );
    fs.mkPath(toDir);
    fs.copyFileSync(fileName, toDir);
  });

staticFiles.forEach(function(fileName) {
    var toDir = fs.toDir(fileName.replace(fromDir, outdir))
    fs.mkPath(toDir)
    fs.copyFileSync(fileName, toDir)
  })

extraStaticFiles.forEach(function(fileName) {
                var sourcePath = fs.toDir(filePath);
                var toDir = fs.toDir( fileName.replace(sourcePath, outdir) );
                fs.mkPath(toDir);
                fs.copyFileSync(fileName, toDir);
            });
        });

staticFiles.forEach(function(fileName) {
        var toDir = fs.toDir( fileName.replace(fromDir, outdir) );
        fs.mkPath(toDir);
        fs.copyFileSync(fileName, toDir);
    });

extraStaticFiles.forEach(function(fileName) {
                var sourcePath = fs.toDir(filePath);
                var toDir = fs.toDir( fileName.replace(sourcePath, outdir) );
                fs.mkPath(toDir);
                fs.copyFileSync(fileName, toDir);
            });
        });

staticFiles.forEach(function(fileName) {
        var toDir = fs.toDir( fileName.replace(fromDir, outdir) );
        fs.mkPath(toDir);
        fs.copyFileSync(fileName, toDir);
    });

extraStaticFiles.forEach(function(fileName) {
                var sourcePath = fs.toDir(filePath);
                var toDir = fs.toDir( fileName.replace(sourcePath, outdir) );
                fs.mkPath(toDir);
                fs.copyFileSync(fileName, toDir);
            });
        });

staticFiles.forEach(function(fileName) {
        var toDir = fs.toDir( fileName.replace(fromDir, outdir) );

        fs.mkPath(toDir);
        fs.copyFileSync(fileName, toDir);
    });

extraStaticFiles.forEach(function (fileName) {
        var sourcePath = fs.toDir(filePath)
        var toDir = fs.toDir(fileName.replace(sourcePath, outdir))
        fs.mkPath(toDir)
        fs.copyFileSync(fileName, toDir)
      })
    })

staticFiles.forEach(function(fileName) {
        var toDir = fs.toDir( fileName.replace(fromDir, outdir) );
        fs.mkPath(toDir);
        fs.copyFileSync(fileName, toDir);
    });