class_docstr: This class implements an ANSI (VT100) terminal.
  It is a stream filter that recognizes ANSI terminal
  escape sequences and maintains the state of a screen object. 
class_docstr_tok: ["This","class","implements","an","ANSI","(","VT100",")","terminal",".","It","is","a","stream","filter","that","recognizes","ANSI","terminal","escape","sequences","and","maintains","the","state","of","a","screen","object","."]
docstr: Select character protection attribute. 
docstr_tok: ["Select","character","protection","attribute","."]
code: def do_decsca(self, fsm):
      """Select character protection attribute."""
      screen = fsm.memory[0]
      fsm.memory = [screen]
  
imports: from .None import screen
  from .None import FSM
  import string
label_desc: Use image node_id 8 for calling the ANSI obj's underlying member method code with example usage: obj.do_decsca(fsm) without return types