code: def parse_flow_mapping_empty_value(self):
      self.state = self.parse_flow_mapping_key
      return self.process_empty_scalar(self.peek_token().start_mark)
  
imports: from .error import MarkedYAMLError
  from .tokens import *
  from .events import *
  from .scanner import *
label_desc: Use image node_id 30 for calling the Parser obj's underlying member method code with example usage: obj.parse_flow_mapping_empty_value() and returns: self