paramz.core.index_operations.ParameterIndexOperations:
This object wraps a dictionary, whos keys are _operations_ that
we'd like to apply to a parameter array, and whose values are np
integer arrays which index the parameter array appropriately.
dict:
dict() -> new empty dictionary
dict(mapping) -> new dictionary initialized from a mapping object's
(key, value) pairs
dict(iterable) -> new dictionary initialized as if via:
d = {}
for k, v in iterable:
d[k] = v
dict(**kwargs) -> new dictionary initialized with the name=value pairs
in the keyword argument list.