<!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="The primary interface to access and modify session state."><title>Session in actix_session - 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/SourceSerif4-Bold-a2c9cd1067f8b328.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-63a85fc7cf22dee2.css"id="mainThemeStyle"><divid="rustdoc-vars"data-root-path="../"data-static-root-path="../static.files/"data-current-crate="actix_session"data-themes=""data-resource-suffix=""data-rustdoc-version="1.70.0-nightly (af06dce64 2023-04-08)"data-search-js="search-bc5a112813b5d712.js"data-settings-js="settings-298e1ea74db45b39.js"data-settings-css="settings-0bcba95ff279c1db.css"data-theme-light-css="light-db279b6232be9c13.css"data-theme-dark-css="dark-cf923f49f397b216.css"data-theme-ayu-css="ayu-be46fdc453a55015.css"></div><scriptsrc="../static.files/storage-62ce34ea385b278a.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../static.files/main-1159a395118aa44e.js"></script><noscript><linkrel="stylesheet"media="(prefers-color-scheme:light)"href="../static.files/light-db279b6232be9c13.css"><linkrel="stylesheet"media="(prefers-color-scheme:dark)"href="../static.files/dark-cf923f49f397b216.css"><linkrel="stylesheet"href="../static.files/noscript-13285aec31fa243e.css"></noscript><linkrel="icon"href="https://actix.rs/favicon.ico"></head><bodyclass="rustdoc struct"><!--[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_session/index.html"><imgsrc="https://actix.rs/img/logo.png"alt="logo"></a><h2></h2></nav><navclass="sidebar"><aclass="logo-container"href="../actix_session/index.html"><imgsrc="https://actix.rs/img/logo.png"alt="logo"></a><h2class="location"><ahref="#">Session</a></h2><divclass="sidebar-elems"><section><h3><ahref="#implementations">Methods</a></h3><ulclass="block"><li><ahref="#method.clear">clear</a></li><li><ahref="#method.entries">entries</a></li><li><ahref="#method.get">get</a></li><li><ahref="#method.insert">insert</a></li><li><ahref="#method.purge">purge</a></li><li><ahref="#method.remove">remove</a></li><li><ahref="#method.remove_as">remove_as</a></li><li><ahref="#method.renew">renew</a></li><li><ahref="#method.status">status</a></li></ul><h3><ahref="#trait-implementations">Trait Implementations</a></h3><ulclass="block"><li><ahref="#impl-Clone-for-Session">Clone</a></li><li><ahref="#impl-FromRequest-for-Session">FromRequest</a></li></ul><h3><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><ulclass="block"><li><ahref="#impl-RefUnwindSafe-for-Session">!RefUnwindSafe</a></li><li><ahref="#impl-Send-for-Session">!Send</a></li><li><ahref="#impl-Sync-for-Session">!Sync</a></li><li><ahref="#impl-UnwindSafe-for-Session">!UnwindSafe</a></li><li><ahref="#impl-Unpin-for-Session">Unpin</a></li></ul><h3><ahref="#blanket-implementations">Blanket Implementations</a></h3><ulclass="block"><li><ahref="#impl-Any-for-Session">A
<p><ahref="struct.Session.html"title="struct actix_session::Session"><code>Session</code></a> is an <ahref="#impl-FromRequest">extractor</a>—you can specify it as an input type for your
<p>You can also retrieve a <ahref="struct.Session.html"title="struct actix_session::Session"><code>Session</code></a> object from an <code>HttpRequest</code> or a <code>ServiceRequest</code> using
) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><T>, <aclass="struct"href="struct.SessionGetError.html"title="struct actix_session::SessionGetError">SessionGetError</a>></h4></section></summary><divclass="docblock"><p>Get a <code>value</code> from the session.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.entries"class="method"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#108-110">source</a><h4class="code-header">pub fn <ahref="#method.entries"class="fn">entries</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/core/cell/struct.Ref.html"title="struct core::cell::Ref">Ref</a><'_, <aclass="struct"href="https://doc.rust-lang.org/nightly/std/collections/hash/map/struct.HashMap.html"title="struct std::collections::hash::map::HashMap">HashMap</a><<aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html"title="struct alloc::string::String">String</a>, <aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html"title="struct alloc::string::String">String</a>>></h4></section></summary><divclass="docblock"><p>Get all raw key-value data from the session.</p>
) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <aclass="struct"href="struct.SessionInsertError.html"title="struct actix_session::SessionInsertError">SessionInsertError</a>></h4></section></summary><divclass="docblock"><p>Inserts a key-value pair into the session.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.remove"class="method"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#156-167">source</a><h4class="code-header">pub fn <ahref="#method.remove"class="fn">remove</a>(&self, key: &<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html"title="struct alloc::string::String">String</a>></h4></section></summary><divclass="docblock"><p>Remove value from the session.</p>
) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html"title="struct alloc::string::String">String</a>>></h4></section></summary><divclass="docblock"><p>Remove value from the session and deserialize.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clear"class="method"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#190-199">source</a><h4class="code-header">pub fn <ahref="#method.clear"class="fn">clear</a>(&self)</h4></section></summary><divclass="docblock"><p>Clear the session.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.purge"class="method"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#202-206">source</a><h4class="code-header">pub fn <ahref="#method.purge"class="fn">purge</a>(&self)</h4></section></summary><divclass="docblock"><p>Removes session both client and server side.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.renew"class="method"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#209-215">source</a><h4class="code-header">pub fn <ahref="#method.renew"class="fn">renew</a>(&self)</h4></section></summary><divclass="docblock"><p>Renews the session key, assigning existing session state to new key.</p>
</div><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <aclass="associatedtype">Error</a> = Error</h4></section></summary><divclass='docblock'>The associated error which can be returned.</div></details><detailsclass="toggle"open><summary><sectionid="associatedtype.Future"class="associatedtype trait-impl"><ahref="#associatedtype.Future"class="anchor">§</a><h4class="code-header">type <aclass="associatedtype">Future</a> = Ready<<aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a>, Error>></h4></section></summary><divclass='docblock'>Future that resolves to a <code>Self</code>. <a>Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.from_request"class="method trait-impl"><aclass="srclink rightside"href="../src/actix_session/session.rs.html#287-289">source</a><ahref="#method.from_request"class="anchor">§</a><h4class="code-header">fn <aclass="fn">from_request</a>(req: &HttpRequest, _: &mut Payload) -> Self::Future</h4></section></summary><divclass='docblock'>Create a <code>Self</code> from request parts asynchronously.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.extract"class="method trait-impl"><ahref="#method.extract"class="anchor">§</a><h4class="code-header">fn <aclass="fn">extract</a>(req: &HttpRequest) -> Self::Future</h4></section></summary><divclass='docblock'>Create a <code>Self</code> from request head asynchronously. <a>Read more</a></div></details></div></details></div><h2id="synthetic-implementations"class="small-section-header">Auto Trait Implementations<ahref="#synthetic-implementations"class="anchor">§</a></h2><divid="synthetic-implementations-list"><sectionid="impl-RefUnwindSafe-for-Session"class="impl"><ahref="#impl-RefUnwindSafe-for-Session"class="anchor">§</a><h3class="code-header">impl !<aclass="trait"href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html"title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a></h3></section><sectionid="impl-Send-for-Session"class="impl"><ahref="#impl-Send-for-Session"class="anchor">§</a><h3class="code-header">impl !<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a></h3></section><sectionid="impl-Sync-for-Session"class="impl"><ahref="#impl-Sync-for-Session"class="anchor">§</a><h3class="code-header">impl !<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a></h3></section><sectionid="impl-Unpin-for-Session"class="impl"><ahref="#impl-Unpin-for-Session"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a></h3></section><sectionid="impl-UnwindSafe-for-Session"class="impl"><ahref="#impl-UnwindSafe-for-Session"class="anchor">§</a><h3class="code-header">impl !<aclass="trait"href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html"title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <aclass="struct"href="struct.Session.html"title="struct actix_session::Session">Session</a></h3></section></div><h2id="blanket-i
T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.type_id"class="method trait-impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><ahref="#method.type_id"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id"class="fn">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></h4></section></summary><divclass='docblock'>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></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Borrow%3CT%3E-for-Session"class="impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><ahref="#impl-Borrow%3CT%3E-for-Session"class="anchor">§</a><h3class="code-header">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
T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="const unstable">const: <ahref="https://github.com/rust-lang/rust/issues/91522"title="Tracking issue for const_borrow">unstable</a></span> · <aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><ahref="#method.borrow"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow"class="fn">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&T</a></h4></section></summary><divclass='docblock'>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-BorrowMut%3CT%3E-for-Session"class="impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><ahref="#impl-BorrowMut%3CT%3E-for-Session"class="anchor">§</a><h3class="code-header">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
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Instrument-for-Session"class="impl"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#276">source</a><ahref="#impl-Instrument-for-Session"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html"title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.instrument"class="method trait-impl"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#82">source</a><ahref="#method.instrument"class="anchor">§</a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument"class="fn">instrument</a>(self, span: <aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"title="struct tracing::span::Span">Span</a>) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'>Instruments this type with the provided <ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.in_current_span"class="method trait-impl"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#121">source</a><ahref="#method.in_current_span"class="anchor">§</a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.in_current_span"class="fn">in_current_span</a>(self) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'>Instruments this type with the <ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html#method.current"title="associated function tracing::span::Span::current">current</a><ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code><ahref="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Same%3CT%3E-for-Session"class="impl"><aclass="srclink rightside"href="https://docs.rs/typenum/1.16.0/src/typenum/type_operators.rs.html#34">source</a><ahref="#impl-Same%3CT%3E-for-Session"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://docs.rs/typenum/1.16.0/typenum/type_operators/trait.Same.html"title="trait typenum::type_operators::Same">Same</a><T> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Output"class="associatedtype trait-impl"><ahref="#associatedtype.Output"class="anchor">§</a><h4class="code-header">type <ahref="https://docs.rs/typenum/1.16.0/typenum/type_operators/trait.Same.html#associatedtype.Output"class="associatedtype">Output</a> = T</h4></section></summary><divclass='docblock'>Should always be <code>Self</code></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToOwned-for-Session"class="impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#82">source</a><ahref="#impl-ToOwned-for-Session"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T<spanclass="where fmt-newline">where
T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>,</span></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Owned"class="associatedtype trait-impl"><ahref="#associatedtype.Owned"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned"class="associatedtype">Owned</a> = T</h4></section></summary><divclass='docblock'>The resulting type after obtaining ownership.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_owned"class="method trait-impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#87">source</a><ahref="#method.to_owned"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned"class="fn">to_owned</a>(&self) -> T</h4></section></summary><divclass='docblock'>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_into"class="method trait-impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#91">source</a><ahref="#method.clone_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut T</a>)</h4></section></summary><divclass='docblock'>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-Session"class="impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#777">source</a><ahref="#impl-TryFrom%3CU%3E-for-Session"class="anchor">§</a><h3class="code-header">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
U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</span></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="const unstable">const: <ahref="https://github.com/rust-lang/rust/issues/88674"title="Tracking issue for const_convert">unstable</a></span> · <aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#784">source</a></span><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">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="associatedtype"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-Session"class="impl"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#761">source</a><ahref="#impl-TryInto%3CU%3E-for-Session"class="anchor">§</a><h3class="code-header">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
U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</span></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-2"class="associatedtype trait-impl"><ahref="#associatedtype.Error-2"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">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="associatedtype"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="const unstable">const: <ahref="https://github.com/rust-lang/rust/issues/88674"title="Tracking issue for const_convert">unstable</a></span> · <aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#768">source</a></span><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">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="associatedtype"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-VZip%3CV%3E-for-Session"class="impl"><ahref="#impl-VZip%3CV%3E-for-Session"class="anchor">§</a><h3class="code-header">impl<V, T> VZip<V> for T<spanclass="where fmt-newline">where
S: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><<aclass="struct"href="https://docs.rs/tracing-core/0.1.22/tracing_core/dispatcher/struct.Dispatch.html"title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>>,</span></h4></section></summary><divclass='docblock'>Attaches the provided <ahref="https://docs.rs/tracing-core/0.1.22/tracing_core/subscriber/trait.Subscriber.html"title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
<ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.with_current_subscriber"class="method trait-impl"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#221">source</a><ahref="#method.with_current_subscriber"class="anchor">§</a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber"class="fn">with_current_subscriber</a>(self) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self></h4></section></summary><divclass='docblock'>Attaches the current <ahref="https://docs.rs/tracing/0.1.37/tracing/dispatcher/index.html#setting-the-default-subscriber"title="mod tracing::dispatcher">default</a><ahref="https://docs.rs/tracing-core/0.1.22/tracing_core/subscriber/trait.Subscriber.html"title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
