<pre style="background-color: #282a36; color: #f8f8f2; font-family: 'JetBrains Mono'; font-size: 11.3pt;"><span style="color: #8be9fd;">@Action </span><span style="color: #8be9fd; font-weight: bold;">private readonly </span><span style="color: #8be9fd;">decrease</span>;</pre>
<p>이렇게 해놓으면 decrease의 타입이 없다는 경고가 나오는데요, 어떻게 하면 경고를 없앨 수 있을까요?</p>

<p>해당 타입을 any로 지정하거나, 'ActionMethod'; 를 지정해 주시면 됩니다.</p>
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<div><span style="color: #569cd6;">import</span><span style="color: #d4d4d4;"> { ActionMethod, MutationMethod } </span><span style="color: #569cd6;">from</span><span style="color: #d4d4d4;"> </span><span style="color: #ce9178;">"vuex"</span><span style="color: #d4d4d4;">;</span></div>
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<div><span style="color: #569cd6;">export</span><span style="color: #d4d4d4;"> </span><span style="color: #569cd6;">default</span><span style="color: #d4d4d4;"> </span><span style="color: #569cd6;">class</span><span style="color: #d4d4d4;"> App </span><span style="color: #569cd6;">extends</span><span style="color: #d4d4d4;"> Vue {</span></div>
<div><span style="color: #d4d4d4;"> @Action </span><span style="color: #569cd6;">readonly</span><span style="color: #d4d4d4;"> increase!: ActionMethod;</span></div>
<div><span style="color: #d4d4d4;"> @Action </span><span style="color: #569cd6;">readonly</span><span style="color: #d4d4d4;"> decrease!: ActionMethod;</span></div>
<div><span style="color: #d4d4d4;"> @Mutation </span><span style="color: #569cd6;">readonly</span><span style="color: #d4d4d4;"> setCount!: MutationMethod;</span></div>
<div><span style="color: #d4d4d4;">}</span></div>
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@Action, @Mutation 등으로 지정된 변수의 타입