Function apply_local 

pub fn apply_local(
    doc: &mut AutoCommit,
    action: &dyn Action,
    encoded: EncodedAction,
) -> Result<ActionEnvelope, ActionError>

Apply action to the local replica and return its replayable envelope. encoded is the serialized form carried to peers — must encode the same action.

Errors

Returns whatever Action::apply returns for action — typically ActionError::Automerge for a document write failure, or ActionError::Refused if the app declined the action.