Series format for EffectEstimate

[Le-Mao]

I've been trying to extend the CTF by processing the output of EffectEstimate (and its surrounding classes), and I notice pd.Series is used for each value and cis.
As far as I can tell though, there's no instance of EffectEstimate in the CTF where multiple values are used in the same Series attribute here - I'm not even sure what that would mean.

Is there some situation where multiple values would be used by the same EffectEstimate? Or am I missing something about the way the class is used that justifies the use of pd.Series here? /genq

(if this is actually not a needed/intended part of the system structure then I'd also like to know that)

Thanks :)