human
Solve the following python programming problem given the following code:
@ classmethod 
def MergeManualScaling(cls, appinclude_one, appinclude_two) : 
    'Takes the greater of <manual_scaling.instances> from the args.

    Note that appinclude_one is mutated to be the merged result in this process.

    Also, this function needs to be updated if ManualScaling gets additional
    fields.

    Args:
      appinclude_one: object one to merge. Must have a "manual_scaling" field
        which contains a ManualScaling().
      appinclude_two: object two to merge. Must have a "manual_scaling" field
        which contains a ManualScaling().

    Returns:
      Object that is the result of merging
      appinclude_one.manual_scaling.instances and
      appinclude_two.manual_scaling.instances. I.e., <appinclude_one>
      after the mutations are complete.
    ' 
    def _Instances(appinclude) : 
        if appinclude.manual_scaling : 
            if appinclude.manual_scaling.instances : 
                return int (appinclude.manual_scaling.instances) 
return None 
instances = max (_Instances (appinclude_two), _Instances (appinclude_two)) 
    if (instances is not None) : 
        appinclude_one.manual_scaling = ManualScaling (instances = str (instances)) 
return appinclude_one 

    
    

    Fix the buggy line: instances = max (_Instances (appinclude_two), _Instances (appinclude_two))
assistant
#Here is Python program to fix the buggy line: instances = max (_Instances (appinclude_two), _Instances (appinclude_two))
.

instances = max (_Instances (appinclude_one), _Instances (appinclude_two))