CORRA specs not available - bug?

[rubiks99]

Hey,

I'm trying get the NPV for a CAD swap. The CORRA default specs ('cad_irs', 'cad_irs_le_1y') aren't available as default keys in the code. They are written in the documentation though.

Code (similar to Bloomberg example given in cookbook):

`ref_args = dict(effective=dt(2024, 7, 31), spec = 'cad_irs', curves = 'corra'

ref = Curve(
id = "corra",
convention = "ActAct",
calendar = "tro",
modifiers = "MF",
interpolation = 'log_linear',
nodes = {
**{dt(2024, 7, 29):1.0},
**{_:1.0 for _ in data["Termination"]},
}
)

solver = Solver(
curves = [ref],
instruments = IRS(termination = _, **ref_args) for _in data['Termination']],
....`

Error:
The traceback leads to error in the instrument argument which is caused due to the ref_args having the cad_irs spec. The error raised is:
ValueError: Given 'spec', 'cad_irs', cannot be found in defaults.

[attack68]

Was added in PR for 10th Jun. Should be available for 1.3.0. The stable docs for 1.3.0 compile with this example.
Wont work for versions < 1.3.0.

As a workaround, obviously, just replace spec=... to the actual args, e.g.. frequency=.., convention=... in your ref_args

[rubiks99]

Awesome, thanks!