<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `ProtoBufResponseBuilder` trait in crate `actix_protobuf`."><title>ProtoBufResponseBuilder in actix_protobuf - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><linkrel="stylesheet"href="../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../static.files/rustdoc-c67e44d78ab2db17.css"><metaname="rustdoc-vars"data-root-path="../"data-static-root-path="../static.files/"data-current-crate="actix_protobuf"data-themes=""data-resource-suffix=""data-rustdoc-version="1.76.0-nightly (e9013ac0e 2023-12-05)"data-channel="nightly"data-search-js="search-5a66c239c06b3a66.js"data-settings-js="settings-fe03fdc259827cd2.js"><scriptsrc="../static.files/storage-fec3eaa3851e447d.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../static.files/main-77dede896d6ac08e.js"></script><noscript><linkrel="stylesheet"href="../static.files/noscript-5d8b3c7633ad77ba.css"></noscript><linkrel="icon"href="https://actix.rs/favicon.ico"></head><bodyclass="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle">☰</button><aclass="logo-container"href="../actix_protobuf/index.html"><imgsrc="https://actix.rs/img/logo.png"alt=""></a></nav><navclass="sidebar"><divclass="sidebar-crate"><aclass="logo-container"href="../actix_protobuf/index.html"><imgsrc="https://actix.rs/img/logo.png"alt="logo"></a><h2><ahref="../actix_protobuf/index.html">actix_protobuf</a><spanclass="version">0.10.0</span></h2></div><h2class="location"><ahref="#">ProtoBufResponseBuilder</a></h2><divclass="sidebar-elems"><section><h3><ahref="#required-methods">Required Methods</a></h3><ulclass="block"><li><ahref="#tymethod.protobuf">protobuf</a></li></ul><h3><ahref="#foreign-impls">Implementations on Foreign Types</a></h3><ulclass="block"><li><ahref="#impl-ProtoBufResponseBuilder-for-HttpResponseBuilder">HttpResponseBuilder</a></li></ul><h3><ahref="#object-safety">Object Safety</a></h3><h3><ahref="#implementors">Implementors</a></h3></section><h2><ahref="index.html">In crate actix_protobuf</a></h2></div></nav><main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><inputclass="search-input"name="search"aria-label="Run search in the documentation"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><divid="help-button"title="help"tabindex="-1"><ahref="../help.html">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Trait <ahref="index.html">actix_protobuf</a>::<wbr><aclass="trait"href="#">ProtoBufResponseBuilder</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../src/actix_protobuf/lib.rs.html#260-262"