python - what is the method attribute

Method attribute, the name sound a bit bizarre at first sight, does it mean some attribute that you can use on the method, like the attribute @attribute notation in java language? but, as we already know that we have python construct that is called decorator, which has the same syntax as the @decorator ; so it apparantly not the decorator. so , what is it indeed?
Suppose a classes is what the methods inside it defines it, like if you have a __str__method, then you can be treated as the string object (through a concpet what wer refers to as duck typing). so if a classes is defined by the method within, then we can think the method that give classes spcial behavior as attributes to the classes.
common method attributes include "str" which can help convert an object to string. "getitem" which give you the ability to access the object through indexer (object
)...