Mapping required and provided context

php

<?php
    $rule = $this->expressionManager->createRule();

    // The condition provides a "provided_text" variable.
    $rule->addCondition('rules_test_provider');

    // The action provides a "concatenated" variable.
    $rule->addAction('rules_test_string', [
      'context_mapping' => ['text:select' => 'provided_text'],
    ]);

    // Add the same action again which will provide a "concatenated2" variable
    // now.
    $rule->addAction('rules_test_string', [
      'context_mapping' => ['text:select' => 'concatenated'],
      'provides_mapping' => ['concatenated' => 'concatenated2'],
    ]);

    $rule->execute();