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  1. {"ast":null,"code":"var isObject = require('./_is-object');\n\nvar setPrototypeOf = require('./_set-proto').set;\n\nmodule.exports = function (that, target, C) {\n var S = target.constructor;\n var P;\n\n if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {\n setPrototypeOf(that, P);\n }\n\n return that;\n};","map":null,"metadata":{},"sourceType":"script"}