@type t() :: %QuickBEAM.VM.Program.Variable{
  is_captured: boolean(),
  is_const: boolean(),
  is_lexical: boolean(),
  name: String.t(),
  scope_level: non_neg_integer(),
  scope_next: integer(),
  var_kind: non_neg_integer(),
  var_ref_idx: non_neg_integer() | nil
}