parameters: (self)
docstring: Write the beginning of the block and then indent.
docstring_summary: Write the beginning of the block and then indent.
docstring_tokens: Write the beginning of the block and then indent .
function: def __enter__(self):
          # type: () -> None
          """Write the beginning of the block and then indent."""
          self._writer.write_template(self._opening)
          self._writer.indent()
function_tokens: def __enter__ ( self ) : # type: () -> None self . _writer . write_template ( self . _opening ) self . _writer . indent ( )