pub fn eval_variable(
engine_state: &EngineState,
stack: &Stack,
var_id: VarId,
span: Span,
) -> Result<Value, ShellError>
pub fn eval_variable(
engine_state: &EngineState,
stack: &Stack,
var_id: VarId,
span: Span,
) -> Result<Value, ShellError>