=ValueType-STRING_MAP><td><code>STRING_MAP</code></td><td><p>A map string -&gt; string, typically used by headers.</p></td></tr></tbody></table></section></article><nav class=pagenav><div class=left><a title="Configuration state for the Mixer client library." href=/v1.1/docs/reference/config/policy-and-telemetry/istio.mixer.v1.config.client/><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#left-arrow"/></svg>Mixer Client</a></div><div class=right></div></nav><div id=endnotes-container aria-hidden=true