Method lookupDefinition

src/compute-engine/index.ts:1172–1174

* Return definition matching the symbol, starting with the current * lexical scope and going up the scope chain.

(id: MathJsonSymbol)

      epoch: currentBoxingEpoch(this),
    });

    if (
      event.valueDef !== undefined &&
      event.from.isUnknown &&
      this._inferenceTxDepth > 0
    ) {