关于以下内容：
//Set tags for your requests when you build them:
Request request = new Request.Builder().
url(url).tag("requestKey").build();
//When you want to cancel:
//A) go through the queued calls and cancel if the tag matches:
for (Call call : mHttpClient.dispatcher().queuedCalls()) {
if (call.request().tag().equals("requestKey"))
call.cancel();
}
//B) go through the running calls and cancel if the tag matches:
for (Call call : mHttpClient.dispatcher().runningCalls()) {
if (call.request().tag().equals("requestKey"))
call.cancel();
}
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