pub fn fetch_mut<T>(&self) -> FetchMut<T>
    where
        T: Resource,
    {
        self.try_fetch_mut().unwrap_or_else(|| fetch_panic!())
    }
/// Fetches the resource with the specified type `T` mutably.
///
/// Please see `fetch` for details.
///
/// # Panics
///
/// Panics if the resource doesn't exist.
/// Panics if the resource is already being accessed.
Fetches the resource with the specified type `T` mutably.
Please see `fetch` for details.
Fetches the resource with the specified type ` T ` mutably . Please see ` fetch ` for details .
pub fn fetch_mut<T>(&self) -> FetchMut<T>
    where
        T: Resource,
    {
        self.try_fetch_mut().unwrap_or_else(|| fetch_panic!())
    }
pub fn fetch_mut < T > ( & self ) -> FetchMut < T > where T : Resource , { self . try_fetch_mut ( ) . unwrap_or_else ( | | fetch_panic ! ( ) ) }
Fetches the resource with the specified type `T` mutably.
Fetches the resource with the specified type ` T ` mutably .
&self
&self
panics
Panics if the resource doesn't exist.
Panics if the resource is already being accessed.
Panics if the resource doesn ' t exist . Panics if the resource is already being accessed .