code: def memory_usage(self, index=True, deep=False):
          
          assert not index, "Internal Error. Index must be evaluated in child class"
          return self._reduce_dimension(
              self._query_compiler.memory_usage(index=index, deep=deep)
          )
docs: Returns the memory usage of each column in bytes
  
          Args:
              index (bool): Whether to include the memory usage of the DataFrame's
                  index in returned Series. Defaults to True
              deep (bool): If True, introspect the data deeply by interrogating
              objects dtypes for system-level memory consumption. Defaults to False
  
          Returns:
              A Series where the index are the column names and the values are
              the memory usage of each of the columns in bytes. If `index=true`,
              then the first value of the Series will be 'Index' with its memory usage.