Answer Posted / Syed Azeem Arshad

Namespaces are a way of organizing code to avoid naming conflicts. In Drupal 8, you can use namespaces for custom modules and themes. To use namespaces, first define them in your module's or theme's .info.yml file. Then, when referring to classes, functions, or other items within your namespace, prefix them with the namespace name followed by a backslash ().

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