如何获取应用上下文Context？

import { UIAbility, AbilityConstant, Want } from '@kit.AbilityKit';

export default class EntryAbility extends UIAbility {
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
let uiAbilityContext = this.context;
//...
}
}
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00001. import { common } from ​​'@kit.AbilityKit';​​
00002. 
privatecontext = getContext(this) ascommon.UIAbilityContext;
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