define ("core/pubsub",["exports","core/pending"],function(a,b){"use strict";Object.defineProperty(a,"__esModule",{value:!0});a.publish=a.unsubscribe=a.subscribe=void 0;b=function(a){return a&&a.__esModule?a:{default:a}}(b);var c={};a.subscribe=function subscribe(a,b){c[a]=c[a]||[];c[a].push(b)};a.unsubscribe=function unsubscribe(a,b){if(c[a]){for(var d=0;d<c[a].length;d++){if(c[a][d]===b){c[a].splice(d,1);break}}}};var d=function(a,d){var e=new b.default("Publishing "+a);if(c[a]){c[a].forEach(function(a){a(d)})}e.resolve()};a.publish=d});
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