function IHaveRuntimeContexts::build
Builds and returns the renderable array for this block plugin.
If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).
Return value
array A renderable array representing the content of the block.
Overrides BlockPluginInterface::build
File
- 
              core/
modules/ layout_builder/ tests/ modules/ layout_builder_test/ src/ Plugin/ Block/ IHaveRuntimeContexts.php, line 26  
Class
- IHaveRuntimeContexts
 - Defines a class for a context-aware block.
 
Namespace
Drupal\layout_builder_test\Plugin\BlockCode
public function build() {
  return [
    '#markup' => $this->getContextValue('runtime_contexts'),
  ];
}
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