yte-array/index.html">ByteArray</a><span class="token punctuation">.</span><a href="set-long.html"><span class="token function">setLong</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">n<span class="token operator">: </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html">Long</a><span class="token punctuation">, </span></span><span class="parameter ">begin<span class="token operator">: </span><a href="https://kotlinlang.org/