human
Solve the following python programming problem given the following code:
def _soft_fuse(self) : 
    'Fuse consecutive loops over the same iteration set by concatenating
        kernel bodies and creating new :class:`ParLoop` objects representing
        the fused sequence.

        The conditions under which two loops over the same iteration set can
        be soft fused are:

            * They are both direct, OR
            * One is direct and the other indirect

        This is detailed in the paper::

            "Mesh Independent Loop Fusion for Unstructured Mesh Applications"

        from C. Bertolli et al.
        ' 
    def fuse(self, loops, loop_chain_index) : 
        kernels = [l.kernel for l in loops] 
        fuse_asts = [(k._original_ast if k._code else k._ast) for k in kernels] 
        base_ast = dcopy (fuse_asts [0]) 
        retval = FindInstances.default_retval () 
        base_fundecl = FindInstances (ast.FunDecl).visit (base_ast, ret = retval) [ast.FunDecl] 
        if (len (base_fundecl) != 1) : 
            raise RuntimeError ('Fusing kernels, but found unexpected AST') 
base_fundecl = base_fundecl [0] 
        for (unique_id, _fuse_ast) in enumerate (fuse_asts [1 :], 1) : 
            fuse_ast = dcopy (_fuse_ast) 
            retval = FindInstances.default_retval () 
            fuse_fundecl = FindInstances (ast.FunDecl).visit (fuse_ast, ret = retval) [ast.FunDecl] 
            if (len (fuse_fundecl) != 1) : 
                raise RuntimeError ('Fusing kernels, but found unexpected AST') 
fuse_fundecl = fuse_fundecl [0] 
            base_fundecl.name = ('%s_%s' % (base_fundecl.name, fuse_fundecl.name)) 
            base_fundecl.args.extend (fuse_fundecl.args) 
            retval = SymbolReferences.default_retval () 
            fuse_symbols = SymbolReferences ().visit (fuse_ast, ret = retval) 
            for decl in fuse_fundecl.args : 
                for (symbol, _) in fuse_symbols [decl.sym.symbol] : 
                    symbol.symbol = ('%s_%d' % (symbol.symbol, unique_id)) 
base_fundecl.children [0] = ast.Block ([ast.Block (base_fundecl.children...

    
    

    Fix the buggy line: fused.append ((fuse (self, fusing, len (fused)), (loop + 1)))
assistant
#Here is Python program to fix the buggy line: fused.

fused.append ((fuse (self, fusing, len (fused)), (i + 1)))