src/app/dbtext/DbtextHtmlBuilderMeta.php
public function assignNamespace(string $namespace, $prepend = false) {
		if ($prepend) {
			array_unshift($this->namespaces, $namespace);
			return;
		}
		
		array_push($this->namespaces, $namespace);
	}
public function assignNamespace(string $namespace, $prepend = false) {
		if ($prepend) {
			array_unshift($this->namespaces, $namespace);
			return;
		}
		
		array_push($this->namespaces, $namespace);
	}
Use this method to add namespaces where textblock keys will be searched.

@param string $namespace
@param bool $prepend