code: def declare_local_variable(self, raw_name, type=None, prepend=False):
          '''
          This function may create a new variable in this scope. If raw_name has been used to create other variables,
          the new variable will hide all other variables created using raw_name.
          '''
          # Get unique ID for the new variable
          onnx_name = self.get_unique_variable_name(raw_name)
  
          # Create the variable
          variable = Variable(raw_name, onnx_name, self.name, type)
          self.variables[onnx_name] = variable
  
          if raw_name in self.variable_name_mapping:
              # Hide existing variables with the same raw_name
              if not prepend:
                  self.variable_name_mapping[raw_name].append(onnx_name)
              else:
                  self.variable_name_mapping[raw_name].insert(0, onnx_name)
          else:
              self.variable_name_mapping[raw_name] = [onnx_name]
          return variablf declare_local_variable(self, raw_name, type=None, prepend=False):
          '''
          This function may create a new variable in this scope. If raw_name has been used to create other variables,
          the new variable will hide all other variables created using raw_name.
          '''
          # Get unique ID for the new variable
          onnx_name = self.get_unique_variable_name(raw_name)
  
          # Create the variable
          variable = Variable(raw_name, onnx_name, self.name, type)
          self.variables[onnx_name] = variable
  
          if raw_name in self.variable_name_mapping:
              # Hide existing variables with the same raw_name
              if not prepend:
                  self.variable_name_mapping[raw_name].append(onnx_name)
              else:
                  self.variable_name_mapping[raw_name].insert(0, onnx_name)
          else:
              self.variable_name_mapping[raw_name] = [onnx_name]
          return variable
docs: This function may create a new variable in this scope. If raw_name has been used to create other variables,
          the new variable will hide all other variables created using raw_name.