return &compositionContext{
		Context:        parent,
		compositionEnv: c,
	}
}

type CompositionContext interface {
	context.Context
	Variables(activation any) ref.Val
	GetAndResetCost() int64
}

type compositionContext struct {
	context.Context

	compositionEnv  *CompositionEnv
	accumulatedCost int64
}

func (c *compositionContext) Variables(activation any) ref.Val {

		evalResult, evalDetails, err := compilationResult.Program.ContextEval(ctx, va)
		// budget may be spent due to lazy evaluation of composited variables
		if compositionCtx != nil {
			compositionCost := compositionCtx.GetAndResetCost()
			if compositionCost > remainingBudget {
				return nil, -1, &cel.Error{
					Type:   cel.ErrorTypeInvalid,