I am working with R and I have created a new subset method for objects of class new_object. Here is my function:

setGeneric('subset', function(x, i) standardGeneric('subset'))
setMethod('subset', 'new_object', function(x, i) { 
    # ... my code ...
    # subset new_object

})

This works perfectly for new_object. However, it seems to interfere with the subset operation of other objects, like seurat objects. I get an error when I try to subset a seurat object after loading my new subset method.

The inheritance method for the 'subset' function with the 'Seurat' tag could not be found.

I would like the subset method to work as usual for all other types of objects, except for new_object, for which I want to use my new subset method.

How can I define a new subset method for a specific class without affecting other objects in R?