ml" title="com.lark.oapi.okio中的类">ByteString</a>&nbsp;key)</code>
<div class="block">Returns a sink that uses the obsolete SHA-1 HMAC algorithm to produce 160-bit hashes.</div>
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<td class="colFirst"><code>static <a href="../../../../com/lark/oapi/okio/HashingSink.html" title="com.lark.oapi.okio中的类">HashingSink</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/lark/oapi/okio/HashingSink.html#hmacSha256-com.lark