---

If you just don't know, use normal `def`.

---

**Note**: You can mix `def` and `async def` in your *path operation functions* as much as you need and define each one using the best option for you. FastAPI will do the right thing with them.

Anyway, in any of the cases above, FastAPI will still work asynchronously and be extremely fast.

But by following the steps above, it will be able to do some performance optimizations.

function(t,e){var n=o.default(e).data("padding-right");o.default(e).removeData("padding-right"),e.style.paddingRight=n||""}));var e=[].slice.call(document.querySelectorAll(".sticky-top"));o.default(e).each((function(t,e){var n=o.default(e).data("margin-right");"undefined"!=typeof n&&o.default(e).css("margin-right",n).removeData("margin-right")}));var n=o.default(document.body).data("padding-right");o.default(document.body).removeData("padding-right"),document.body.style.paddingRight=n||""},e._ge...

              "options": "Replication Errors"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "light-red",
                  "mode": "fixed"
                }
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",

 *   <li>An annotation named just "Suppress" might suggest to users that the test is suppressed
 *       under all environments. We could fight this by fully qualifying the annotation, but the
 *       result will be verbose and attention-grabbing.
 *   <li>We need to be careful about how we suppress {@code suite()} methods in {@code common.io}.

                                                                        <button type="button"
                                                                                class="btn btn-outline-light"
                                                                                data-dismiss="modal">
                                                                            <la:message

              "options": "Replication Errors"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "light-red",
                  "mode": "fixed"
                }
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",

					</div>
				</div>
			</nav>
		</header>
		<div id="searchOptions" class="collapse">
			<div class="container">
				<jsp:include page="searchOptions.jsp" />
				<div>
					<button type="button" class="btn btn-light" id="searchOptionsClearButton">
						<la:message key="labels.search_options_clear" />
					</button>
					<button type="submit" class="btn btn-primary">
						<em class="fa fa-search">

<div style="text-align: right; margin-right: 10%;">Kabir Khan - <strong>Microsoft</strong> <a href="https://github.com/fastapi/fastapi/pull/26" target="_blank"><small>(ref)</small></a></div>

---

"_We adopted the **FastAPI** library to spawn a **REST** server that can be queried to obtain **predictions**. [for Ludwig]_"

// https://www.iana.org/domains/root/db/fitness.html
fitness

// flickr : Flickr, Inc.
// https://www.iana.org/domains/root/db/flickr.html
flickr

// flights : Binky Moon, LLC
// https://www.iana.org/domains/root/db/flights.html
flights

// flir : FLIR Systems, Inc.
// https://www.iana.org/domains/root/db/flir.html
flir

// florist : Binky Moon, LLC

        
        if (rssCapable) score += 1000;   // Prefer RSS-capable
        if (rdmaCapable) score += 2000;  // Prefer RDMA-capable
        if (!ipv6) score += 100;         // Slight preference for IPv4
        
        return score;
    }
    
    private boolean checkRSSCapability() {
        // Platform-specific RSS detection
        // Simplified implementation
        try {