code: def increase_indent(self, flow=False, indentless=False):
      self.indents.append(self.indent)
      if self.indent is None:
          if flow:
              self.indent = self.best_indent
          else:
              self.indent = 0
      elif not indentless:
          self.indent += self.best_indent
  
imports: from .error import YAMLError
  from .events import *
label_desc: Use image node_id 6 for calling the Emitter obj's underlying member method code with example usage: obj.increase_indent(flow, indentless) without return types