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							- var constants = exports;
 
- // Helper
 
- constants._reverse = function reverse(map) {
 
-   var res = {};
 
-   Object.keys(map).forEach(function(key) {
 
-     // Convert key to integer if it is stringified
 
-     if ((key | 0) == key)
 
-       key = key | 0;
 
-     var value = map[key];
 
-     res[value] = key;
 
-   });
 
-   return res;
 
- };
 
- constants.der = require('./der');
 
 
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