human
Solve the following python programming problem given the following code:
def _build_finalize(self, dshape) : 
    cats = list (finalize [self.column].categories) 
    def finalize(bases, **kwargs) : 
        dims = (kwargs ['dims'] + [self.column]) 
        coords = (kwargs ['coords'] + [cats]) 
        return xr.DataArray (bases [0], dims = dims, coords = coords) 
return finalize 

    
    

    Fix the buggy line: cats = list (finalize [self.column].categories)
assistant
#Here is Python code to fix the buggy line: cats = list (finalize [self.

cats = list (dshape [self.column].categories)