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Persisted Validation Data

roadmap/implementers-guide/src/runtime-api/persisted-validation-data.md

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Persisted Validation Data

Yields the PersistedValidationData for the given ParaId along with an assumption that should be used if the para currently occupies a core:

rust
/// Returns the persisted validation data for the given para and occupied core assumption.
///
/// Returns `None` if either the para is not registered or the assumption is `Freed`
/// and the para already occupies a core.
fn persisted_validation_data(at: Block, ParaId, OccupiedCoreAssumption) -> Option<PersistedValidationData>;