+This module provides the basic interface to work with dynamically
+scoped variables. It provides the following functions for that:
+construct() returns a dynamic scope object and a function to introduce
+fluid is the default dynamic scope set up ready to use.
+flet(**kw) is the function to introduce local bindings on fluid. It
+returns a context manager that is used in combination with the with
+statement and will handle unwinding of dynamic namespaces.
from fluids import DynamicScope