parameters: (self)
return_statement: return self._offset
docstring: Tell the file's current offset.
  
      Returns:
        current offset in reading this file.
  
      Raises:
        IOError: When this buffer is closed.
docstring_summary: Tell the file's current offset.
docstring_tokens: Tell the file s current offset .
function: def tell(self):
      """Tell the file's current offset.
  
      Returns:
        current offset in reading this file.
  
      Raises:
        IOError: When this buffer is closed.
      """
      self._check_open()
      return self._offset
function_tokens: def tell ( self ) : self . _check_open ( ) return self . _offset