‘liusuyi’
2023-08-09 40d53fc85f07155b93d92f9cec4d64c94f74abb3
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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');