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e.prependListener(t,n);e._events&&e._events[t]?Array.isArray(e._events[t])?e._events[t].unshift(n):e._events[t]=[n,e._events[t]]:e.on(t,n)}(e,"error",p),e.once("close",b),e.once("finish",g),e.emit("pipe",n),i.flowing||(d("pipe resume"),n.resume()),e},k.prototype.unpipe=function(e){var t=this._readableState,n={hasUnpiped:!1};if(0===t.pipesCount)return this;if(1===t.pipesCount)return e&&e!==t.pipes||(e||(e=t.pipes),t.pipes=null,t.pipesCount=0,t.flowing=!1,e&&e.emit("unpipe",this,n)),this;if(!e){var r=t.pipes,i=t.pipesCount;t.pipes=null,t.pipesCount=0,t.flowing=!1;for(var a=0;a0,!1!==i.flowing&&this.resume()):"readable"===e&&(i.endEmitted||i.readableListening||(i.readableListening=i.needReadable=!0,i.flowing=!1,i.emittedReadable=!1,d("on readable",i.length,i.reading),i.length?L(this):i.reading||r.nextTick(C,this))),n},k.prototype.addListener=k.prototype.on,k.prototype.removeListener=function(e,t){var n=o.prototype.removeListener.call(this,e,t);return"readable"===e&&r.nextTick(P,this),n},k.prototype.removeAllListeners=function(e){var t=o.prototype.removeAllListeners.apply(this,arguments);return"readable"!==e&&void 0!==e||r.nextTick(P,this),t},k.prototype.resume=function(){var e=this._readableState;return e.flowing||(d("resume"),e.flowing=!e.readableListening,function(e,t){t.resumeScheduled||(t.resumeScheduled=!0,r.nextTick(W,e,t))}(this,e)),e.paused=!1,this},k.prototype.pause=function(){return d("call pause flowing=%j",this._readableState.flowing),!1!==this._readableState.flowing&&(d("pause"),this._readableState.flowing=!1,this.emit("pause")),this._readableState.paused=!0,this},k.prototype.wrap=function(e){var t=this,n=this._readableState,r=!1;for(var i in e.on("end",(function(){if(d("wrapped end"),n.decoder&&!n.ended){var e=n.decoder.end();e&&e.length&&t.push(e)}t.push(null)})),e.on("data",(function(i){(d("wrapped data"),n.decoder&&(i=n.decoder.write(i)),n.objectMode&&null==i||!(n.objectMode||i&&i.length))||(t.push(i)||(r=!0,e.pause()))})),e)void 0===this[i]&&"function"==typeof e[i]&&(this[i]=function(t){return function(){return e[t].apply(e,arguments)}}(i));for(var a=0;a2?"one of ".concat(t," ").concat(e.slice(0,n-1).join(", "),", or ")+e[n-1]:2===n?"one of ".concat(t," ").concat(e[0]," or ").concat(e[1]):"of ".concat(t," ").concat(e[0])}return"of ".concat(t," ").concat(String(e))}i("ERR_INVALID_OPT_VALUE",(function(e,t){return'The value "'+t+'" is invalid for option "'+e+'"'}),TypeError),i("ERR_INVALID_ARG_TYPE",(function(e,t,n){var r,i;if("string"==typeof t&&function(e,t,n){return e.substr(!n||n<0?0:+n,t.length)===t}(t,"not ")?(r="must not be",t=t.replace(/^not /,"")):r="must be",function(e,t,n){return(void 0===n||n>e.length)&&(n=e.length),e.substring(n-t.length,n)===t}(e," argument"))i="The ".concat(e," ").concat(r," ").concat(a(t,"type"));else{var o=function(e,t,n){return"number"!=typeof n&&(n=0),!(n+t.length>e.length)&&-1!==e.indexOf(t,n)}(e,".")?"property":"argument";i='The "'.concat(e,'" ').concat(o," ").concat(r," ").concat(a(t,"type"))}return i+=". Received type ".concat(typeof n)}),TypeError),i("ERR_STREAM_PUSH_AFTER_EOF","stream.push() after EOF"),i("ERR_METHOD_NOT_IMPLEMENTED",(function(e){return"The "+e+" method is not implemented"})),i("ERR_STREAM_PREMATURE_CLOSE","Premature close"),i("ERR_STREAM_DESTROYED",(function(e){return"Cannot call "+e+" after a stream was destroyed"})),i("ERR_MULTIPLE_CALLBACK","Callback called multiple times"),i("ERR_STREAM_CANNOT_PIPE","Cannot pipe, not readable"),i("ERR_STREAM_WRITE_AFTER_END","write after end"),i("ERR_STREAM_NULL_VALUES","May not write null values to stream",TypeError),i("ERR_UNKNOWN_ENCODING",(function(e){return"Unknown encoding: "+e}),TypeError),i("ERR_STREAM_UNSHIFT_AFTER_END_EVENT","stream.unshift() after end event"),e.exports.codes=r},f12a:function(e,t,n){e.exports=n("faa1").EventEmitter},f1c8:function(e,t,n){"use strict";e.exports=l;var r=n("d113").codes,i=r.ERR_METHOD_NOT_IMPLEMENTED,a=r.ERR_MULTIPLE_CALLBACK,o=r.ERR_TRANSFORM_ALREADY_TRANSFORMING,s=r.ERR_TRANSFORM_WITH_LENGTH_0,u=n("5e7d");function d(e,t){var n=this._transformState;n.transforming=!1;var r=n.writecb;if(null===r)return this.emit("error",new a);n.writechunk=null,n.writecb=null,null!=t&&this.push(t),r(e);var i=this._readableState;i.reading=!1,(i.needReadable||i.length