dataTypeMatches example

      // specific data type like 'entity:user'. However, if this type is more       // specific, do not consider a more generic type to be a match.       str_starts_with($that_type, "$this_type:")
    );
  }

  /** * {@inheritdoc} */
  public function isSatisfiedBy(ContextInterface $context) {
    $definition = $context->getContextDefinition();
    if (!$this->dataTypeMatches($context)) {
      return FALSE;
    }

    // Get the value for this context, either directly if possible or by     // introspecting the definition.     if ($context->hasContextValue()) {
      $values = [$context->getContextData()];
    }
    elseif ($definition instanceof self) {
      $values = $definition->getSampleValues();
    }