src/Util/DatagridFactoryBuilder.php
public function addExtensions($extensions): self
    {
        $this->extensions = array_merge($this->extensions, $extensions);

        return $this;
    }
public function addExtensions($extensions): self
    {
        $this->extensions = array_merge($this->extensions, $extensions);

        return $this;
    }
@param DatagridExtensionInterface[] $extensions

@return DatagridFactoryBuilder