from resolver import Resolver
Resolver
resolve = Resolver()
resolve

#Leveraging callable classes
def sequence_class(immutable):
    if immutable:
        cls = tuple
    else:
        cls = list
    return cls

seq = sequence_class(immutable=True)
t = seq("Timbuktu")
t
type(t)

def sequence_class(immutable):
    return tuple if immutable else list #Note syntax
seq = sequence_class(immutable=False)
s = seq("Nairobi")
s
type(s)

