<s> from ... import debug_mode <EOL> from . exprgraph import ExprGraph <EOL> from . util import draw , DebugExprGraph , NANGuardExprGraph <EOL> if debug_mode == '<STR_LIT>' : <EOL> ExprGraph = DebugExprGraph <EOL> if debug_mode == '<STR_LIT>' : <EOL> ExprGraph = NANGuardExprGraph </s>
