<!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 `Config` struct in crate `bincode`."><metaname="keywords"content="rust, rustlang, rust-lang, Config"><title>bincode::Config - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../bincode/index.html'><divclass='logo-container'><imgsrc='../rust-logo.png'alt='logo'></div></a><pclass='location'>Struct Config</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#methods">Methods</a><divclass="sidebar-links"><ahref="#method.big_endian">big_endian</a><ahref="#method.deserialize">deserialize</a><ahref="#method.deserialize_from">deserialize_from</a><ahref="#method.deserialize_from_custom">deserialize_from_custom</a><ahref="#method.deserialize_seed">deserialize_seed</a><ahref="#method.limit">limit</a><ahref="#method.little_endian">little_endian</a><ahref="#method.native_endian">native_endian</a><ahref="#method.no_limit">no_limit</a><ahref="#method.serialize">serialize</a><ahref="#method.serialize_into">serialize_into</a><ahref="#method.serialized_size">serialized_size</a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">UnwindSafe</a></div><aclass="sidebar-title"href="#blanket-implementations">Blanket Implementations</a><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><pclass='location'><ahref='index.html'>bincode</a></p><script>window.sidebarCurrent={name:'Config',ty:'struct',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/bincode/config.rs.html#98-101'title='goto source code'>[src]</a></span><spanclass='in-band'>Struct <ahref='index.html'>bincode</a>::<wbr><aclass="struct"href=''>Config</a></span></h1><divclass="docblocktype-
<p>The purpose of byte-limiting is to prevent Denial-Of-Service attacks whereby malicious attackers get bincode
deserialization to crash your process by allocating too much memory or keeping a connection open for too long.</p>
<p>When a byte limit is set, bincode will return <code>Err</code> on any deserialization that goes over the limit, or any
serialization that goes over the limit.</p>
</div><h2id='methods'class='small-section-header'>Methods<ahref='#methods'class='anchor'></a></h2><h3id='impl'class='impl'><codeclass='in-band'>impl <aclass="struct"href="../bincode/struct.Config.html"title="struct bincode::Config">Config</a></code><ahref='#impl'class='anchor'></a><aclass='srclink'href='../src/bincode/config.rs.html#184-333'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.no_limit'class="method"><codeid='no_limit.v'>pub fn <ahref='#method.no_limit'class='fnname'>no_limit</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><aclass='srclink'href='../src/bincode/config.rs.html#196-199'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Sets the byte limit to be unlimited.
This is the default.</p>
</div><h4id='method.limit'class="method"><codeid='limit.v'>pub fn <ahref='#method.limit'class='fnname'>limit</a>(&mut self, limit: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><aclass='srclink'href='../src/bincode/config.rs.html#203-206'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Sets the byte limit to <code>limit</code>.</p>
</div><h4id='method.little_endian'class="method"><codeid='little_endian.v'>pub fn <ahref='#method.little_endian'class='fnname'>little_endian</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><aclass='srclink'href='../src/bincode/config.rs.html#211-214'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Sets the endianness to little-endian
This is the default.</p>
</div><h4id='method.big_endian'class="method"><codeid='big_endian.v'>pub fn <ahref='#method.big_endian'class='fnname'>big_endian</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><aclass='srclink'href='../src/bincode/config.rs.html#218-221'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Sets the endianness to big-endian</p>
</div><h4id='method.native_endian'class="method"><codeid='native_endian.v'>pub fn <ahref='#method.native_endian'class='fnname'>native_endian</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><aclass='srclink'href='../src/bincode/config.rs.html#225-228'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Sets the endianness to the the machine-native endianness</p>
</div><h4id='method.serialize'class="method"><codeid='serialize.v'>pub fn <ahref='#method.serialize'class='fnname'>serialize</a><T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a> + <aclass="trait"href="../serde/ser/trait.Serialize.html"title="trait serde::ser::Serialize">Serialize</a>>(&self, t: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><<aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html"title="struct alloc::vec::Vec">Vec</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>>></code><aclass='srclink'href='../src/bincode/config.rs.html#232-234'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Serializes a serializable object into a <code>Vec</code> of bytes using this configuration</p>
</div><h4id='method.serialized_size'class="method"><codeid='serialized_size.v'>pub fn <ahref='#method.serialized_size'class='fnname'>serialized_size</a><T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a> + <aclass="trait"href="../serde/ser/trait.Serialize.html"title="trait serde::ser::Serialize">Serialize</a>>(&self, t: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>></code><aclass='srclink'href='../src/bincode/config.rs.html#238-240'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Returns the size that an object would be if serialized using Bincode with this configuration</p>
</div><h4id='method.serialize_into'class="method"><codeid='serialize_into.v'>pub fn <ahref='#method.serialize_into'class='fnname'>serialize_into</a><W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>, T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a> + <aclass="trait"href="../serde/ser/trait.Serialize.html"title="trait serde::ser::Serialize">Serialize</a>>(<br> &self, <br> w: W, <br> t: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T<br>) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><aclass='srclink'href='../src/bincode/config.rs.html#247-253'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Serializes an object directly into a <code>Writer</code> using this configuration</p>
<p>If the serialization would take more bytes than allowed by the size limit, an error
is returned and <em>no bytes</em> will be written into the <code>Writer</code></p>
</div><h4id='method.deserialize'class="method"><codeid='deserialize.v'>pub fn <ahref='#method.deserialize'class='fnname'>deserialize</a><'a, T: <aclass="trait"href="../serde/de/trait.Deserialize.html"title="trait serde::de::Deserialize">Deserialize</a><'a>>(&self, bytes: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><T></code><aclass='srclink'href='../src/bincode/config.rs.html#257-259'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Deserializes a slice of bytes into an instance of <code>T</code> using this configuration</p>
</div><h4id='method.deserialize_seed'class="method"><codeid='deserialize_seed.v'>pub fn <ahref='#method.deserialize_seed'class='fnname'>deserialize_seed</a><'a, T: <aclass="trait"href="../serde/de/trait.DeserializeSeed.html"title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'a>>(<br> &self, <br> seed: T, <br> bytes: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a><br>) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><T::<aclass="type"href="../serde/de/trait.DeserializeSeed.html#associatedtype.Value"title="type serde::de::DeserializeSeed::Value">Value</a>></code><aclass='srclink'href='../src/bincode/config.rs.html#274-280'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Deserializes a slice of bytes with state <code>seed</code> using this configuration.</p>
</div><h4id='method.deserialize_from'class="method"><codeid='deserialize_from.v'>pub fn <ahref='#method.deserialize_from'class='fnname'>deserialize_from</a><R: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html"title="trait std::io::Read">Read</a>, T: <aclass="trait"href="../serde/de/trait.DeserializeOwned.html"title="trait serde::de::DeserializeOwned">DeserializeOwned</a>>(<br> &self, <br> reader: R<br>) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><T></code><aclass='srclink'href='../src/bincode/config.rs.html#286-291'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Deserializes an object directly from a <code>Read</code>er using this configuration</p>
<p>If this returns an <code>Error</code>, <code>reader</code> may be in an invalid state.</p>
</div><h4id='method.deserialize_from_custom'class="method"><codeid='deserialize_from_custom.v'>pub fn <ahref='#method.deserialize_from_custom'class='fnname'>deserialize_from_custom</a><'a, R: <aclass="trait"href="../bincode/trait.BincodeRead.html"title="trait bincode::BincodeRead">BincodeRead</a><'a>, T: <aclass="trait"href="../serde/de/trait.DeserializeOwned.html"title="trait serde::de::DeserializeOwned">DeserializeOwned</a>>(<br> &self, <br> reader: R<br>) -><aclass="type"href="../bincode/type.Result.html"title="type bincode::Result">Result</a><T></code><aclass='srclink'href='../src/bincode/config.rs.html#299-304'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Deserializes an object from a custom <code>BincodeRead</code>er using the default configuration.
It is highly recommended to use <code>deserialize_from</code> unless you need to implement
<code>BincodeRead</code> for performance reasons.</p>
<p>If this returns an <code>Error</code>, <code>reader</code> may be in an invalid state.</p>
</div></div><h3id='impl-From%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</code><ahref='#impl-From%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#552-554'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.from'class="method hidden"><codeid='from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from'class='fnname'>from</a>(t: T) -> T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#553'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryFrom%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></code><ahref='#impl-TryFrom%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#571-577'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error'class="type"><codeid='Error.t'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error'class="type">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_from'class="method hidden"><codeid='try_from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from'class='fnname'>try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#574-576'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryInto%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><ahref='#impl-TryInto%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#559-566'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error-1'class="type"><codeid='Error.t-1'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error'class="type">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_into'class="method hidden"><codeid='try_into.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into'class='fnname'>try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#563-565'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-BorrowMut%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-BorrowMut%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow_mut'class="method hidden"><codeid='borrow_mut.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut'class='fnname'>borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3id='impl-Borrow%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Borrow%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow'class="method hidden"><codeid='borrow.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow'class='fnname'>borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3id='impl-Any'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T <spanclass="where fmt-newline">where<br> T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Any'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.type_id'class="method hidden"><codeid='type_id.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id'class='fnname'>type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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