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if (typeof Function.prototype.bind != 'function') {
Function.prototype.bind = function bind(obj) {
var args = Array.prototype.slice.call(arguments, 1),
self = this,
nop = function() {
},
bound = function() {
return self.apply(
this instanceof nop ? this : (obj || {}), args.concat(
Array.prototype.slice.call(arguments)
)
);
};
nop.prototype = this.prototype || {};
bound.prototype = new nop();
return bound;
};
}
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