# Stage in maplibre::schedule - Rust
API documentation for the Rust `Stage` trait in crate `maplibre`.
Keywords: rust, rustlang, rust-lang, Stage

# Trait maplibre::schedule::Stage

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    pub trait Stage: Downcast {
        fn run(&mut self, context: &mut MapContext);
    }

## Required methods

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#### fn run(&mut self, context: &mut MapContext)

Runs the stage; this happens once per update. Implementors must initialize all of their state before running the first time.

## Implementations

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### impl dyn Stage

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#### pub fn is<__T: Stage>(&self) -> bool

Returns true if the trait object wraps an object of type `__T`.

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#### pub fn downcast<__T: Stage>(self: Box<Self>) -> Result<Box<__T>, Box<Self>>

Returns a boxed object from a boxed trait object if the underlying object is of type `__T`. Returns the original boxed trait if it isn’t.

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#### pub fn downcast_rc<__T: Stage>(self: Rc<Self>) -> Result<Rc<__T>, Rc<Self>>

Returns an `Rc`-ed object from an `Rc`-ed trait object if the underlying object is of type `__T`. Returns the original `Rc`-ed trait if it isn’t.

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#### pub fn downcast_ref<__T: Stage>(&self) -> Option<&__T>

Returns a reference to the object within the trait object if it is of type `__T`, or `None` if it isn’t.

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#### pub fn downcast_mut<__T: Stage>(&mut self) -> Option<&mut __T>

Returns a mutable reference to the object within the trait object if it is of type `__T`, or `None` if it isn’t.

## Implementors

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### impl Stage for ExtractStage

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### impl Stage for GraphRunnerStage

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### impl Stage for PhaseSortStage

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### impl Stage for QueueStage

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### impl Stage for ResourceStage

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### impl Stage for PrepareStage

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### impl Stage for UploadStage

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### impl Stage for PopulateTileStore

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### impl Stage for NopStage

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### impl Stage for Schedule

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### impl<SM, HC> Stage for RequestStage<SM, HC> where
SM: ScheduleMethod,
HC: HttpClient,

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### impl<const I: usize, S> Stage for MultiStage<I, S> where
S: Stage,