删除了<!---

feige

2023-04-25 fb3c954aaa562833b49a5449e7f790657e3ff2a3

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var defineWellKnownSymbol = require('../internals/well-known-symbol-define');
 
// `Symbol.observable` well-known symbol
// https://github.com/tc39/proposal-observable
defineWellKnownSymbol('observable');