broadcast_model concatenation error

[Huta2018]

The following error arose when I run this code

phis = broadcast_model( # Fit with two components, a linear background, and a Lorentzian peak [AffineBackgroundModel, LorentzianModel], # fit across the entire near_ef dataset near_ef, # fit along each value of "temperature" "temperature" )

TypeError: can only concatenate tuple (not "list") to tuple