a should be primitive.A or []any type.

m should be primitive.M or map[string]any type.

return deleted count, original objects.

return deleted count, original object.

return found objects.

return found object, if not found, return nil.

return inserted id(s), inserted data.

return replaced count, after replacing data.

if couldn't find, do nothing.

return updated count.

if inserted, return id, inserted data if replaced, return count, after replacing data.