probes/leveldown-probe.js
function() {
    var lvldownObj = target.apply(null, arguments);
    lvldownObj._ddProbeAttached_ = true;
    aspectLvldownMethod(lvldownObj, methods, that);
    return lvldownObj;
  }
function() {
    var lvldownObj = target.apply(null, arguments);
    lvldownObj._ddProbeAttached_ = true;
    aspectLvldownMethod(lvldownObj, methods, that);
    return lvldownObj;
  }
function ( ) { var lvldownObj = target . apply ( null , arguments ) ; lvldownObj . _ddProbeAttached_ = true ; aspectLvldownMethod ( lvldownObj , methods , that ) ; return lvldownObj ; }
Wrapping the target in new function as leveldown returns constructor
Wrapping the target in new function as leveldown returns constructor