Providers

Binding a data source to the cache and a reader, and getting native-grid arrays out at the simulation's cadence.

Operation	Kind	Bindings	Summary
`const_provider`	function	Julia	Thin constructor for a time-invariant ([`CONST`]) provider.
`discrete_provider`	function	Julia	Thin constructor for a time-varying ([`DISCRETE`]) provider over `times`.
`materialize`	function	Julia	Return the native arrays for the source at time `t`.
`prefetch`	function	Julia	Warm the cache for every URL the provider will need — the single URL for a [`CONST`] provider, the unique per-tick URLs for a [`DISCRETE`] one — WITHOUT decoding.
`refresh`	function	Julia	Re-materialize at the cadence tick `t`.
`refresh_times`	function	Julia	The discrete time points at which the data changes and the solver must [`refresh`].
`data_source`	type	Python, Rust	The I/O-relevant projection of an ESS `DataSource` the Provider needs.
`provider`	type	Python, Julia, Rust	A loader-bound provider of native-grid arrays, refreshed at the loader’s cadence.
`source_temporal`	type	Python, Rust	The temporal cadence of a DISCRETE loader (absent ⇒ CONST).
`window`	type	Python, Rust	A run window `(start, end)` — half-open `[start, end)`.