巡检计划打卡前

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2023-08-18 ac2ab42d45dd7fba0fcc3506c40cea34039f6e9a

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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');