| "use strict"; | 
|   | 
| exports.__esModule = true; | 
| exports.default = warnOnce; | 
| var printed = {}; | 
|   | 
| function warnOnce(message) { | 
|   if (printed[message]) return; | 
|   printed[message] = true; | 
|   | 
|   if (typeof console !== 'undefined' && console.warn) { | 
|     console.warn(message); | 
|   } | 
| } | 
|   | 
| module.exports = exports.default; | 
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