docs: function processUnary(tokenizer, scope) {
    const unaryAddSubtract = {
      '-': value => -value,
      '+': value => value
    };
  
    if (tokenizer.token.match(types.ADD_SUBTRACT)) {
      return createOperatorNode(unaryAddSubtract[tokenizer.token.lexeme], [processUnary(tokenizer.skipToken(), scope)]);
    }
  
    if (tokenizer.token.match(types.INCREASE_DECREASE) || tokenizer.token.match(types.LOGICAL_NEGATION)) {
      return createOperatorNode(tokenizer.token.value, [processUnary(tokenizer.skipToken(), scope)]);
    }
  
    return processIdentifiers(tokenizer, scope);
  }