Can't find parameter['teffratio', 'requivsumfrac'] in default_binary()

[d11122]

I can't find parameter['teffratio', 'requivsumfrac'] in the default _binary().
when I create a new default _binary(), I Tried print(b['teffratio']),
got
ParameterSet: 0 parameters NO PARAMETERS
But, I know that after using ebai, I can get these parameter.
Do I need to follow the tutorial to create these parameters myself without using ebai? --daimin, thanks.

[kecnry]

These are both optional constraints (they don't exist by default, but are added for you with the ebai solver since it requires them). You can add them manually with b.add_constraint:

import phoebe

b = phoebe.default_binary()
b.add_constraint('teffratio')
b.add_constraint('requivsumfrac')

[d11122]

thanks you! Kyle Conroy