parameters: (self)
return_statement: return None
docstring: Returns the line number to move the cursor to, or None to leave
              it where the user last left it.
              Subclasses implement this to define custom behaviour.
docstring_summary: Returns the line number to move the cursor to, or None to leave
              it where the user last left it.
              Subclasses implement this to define custom behaviour.
docstring_tokens: Returns the line number to move the cursor to or None to leave it where the user last left it . Subclasses implement this to define custom behaviour .
function: def get_selected_line(self):
          """ Returns the line number to move the cursor to, or None to leave
              it where the user last left it.
              Subclasses implement this to define custom behaviour.
          """
          return None
function_tokens: def get_selected_line ( self ) : return None