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+Usage with PSR 7 Streams
+===============
+
+PSR-7 streams are `standardized streams <https://www.php-fig.org/psr/psr-7/>`_.
+
+ZipStream-PHP supports working with these streams with the function
+``addFileFromPsr7Stream``. 
+
+For all parameters of the function see the API documentation.
+
+Example
+---------------
+
+.. code-block:: php
+    
+    $stream = $response->getBody();
+    // add a file named 'streamfile.txt' from the content of the stream
+    $zip->addFileFromPsr7Stream('streamfile.txt', $stream);