parameters: (self)
docstring: Starts an ESC sequence.
docstring_summary: Starts an ESC sequence.
docstring_tokens: Starts an ESC sequence .
function: def esc(self):
          """Starts an ESC sequence."""
          self.state = self.ESEQ_ESC
          self.esc_seq = ''
function_tokens: def esc ( self ) : self . state = self . ESEQ_ESC self . esc_seq = ''