Function SetDiagnostics 

pub fn SetDiagnostics(
    Owner: String,
    EntriesDTOValue: Value,
) -> ActionEffect<Arc<dyn DiagnosticManager>, CommonError, ()>

Creates an effect that, when executed, will set or update diagnostics for a given owner. This is the primary way extensions report problems to the host.

It uses the DiagnosticManager capability from the environment to perform the operation, which involves updating the central diagnostic store.

Parameters

• Owner: A string identifying the source of the diagnostics (e.g., ‘typescript-linter’).
• EntriesDTOValue: A serde_json::Value representing an array of entries. Each entry is a tuple: [UriComponentsValue, Option<Vec<MarkerDataDTOAsValue>>].

Returns

An ActionEffect that resolves to () on success.