parameters: (self, column_name, ridx)
docstring: Get the element at the specified column name and row index.
  
          If the element does not exist, return None.
  
          Args:
              column_name (str)
              ridx (int)
  
          Returns:
              object or None
docstring_summary: Get the element at the specified column name and row index.
docstring_tokens: Get the element at the specified column name and row index .
function: def get(self, column_name, ridx):
          """Get the element at the specified column name and row index.
  
          If the element does not exist, return None.
  
          Args:
              column_name (str)
              ridx (int)
  
          Returns:
              object or None
          """
          val = None
          try:
              if self._format == 0:
                  return self._data_or_schema[ridx][column_name]
              elif self._format == 1:
                  return self._data_or_schema[column_name][ridx]
              else:
                  raise NotImplementedError()
              return val
          except (KeyError, IndexError):
              return None
function_tokens: def get ( self , column_name , ridx ) : val = None try : if self . _format == 0 : return self . _data_or_schema [ ridx ] [ column_name ] elif self . _format == 1 : return self . _data_or_schema [ column_name ] [ ridx ] else : raise NotImplementedError ( ) return val except ( KeyError , IndexError ) : return None