title: How to calculate a Directory size in ADLS using PySpark?
body: <p>I want to calculate a directory(e.g- XYZ) size which contains sub folders and sub files.
  I want total size of all the files and everything inside XYZ.</p>
  
  <p>I could find out all the folders inside a particular path. But I want size of all together.
  Also I see </p>
  
  <p><code>display(dbutils.fs.ls("/mnt/datalake/.../XYZ/.../abc.parquet"))</code> </p>
  
  <p>gives me data size of abc file.
  But I want complete size of XYZ.</p>