How to use complex object?

[carolfelix]

I'm using the library in my project and I came across a lambda, an expression that used a complex object. At first the string was with a dot for example: obj.prop
and then I had an error that the point was not recognized. I tested other characters like underline, dash, but it didn't work, I looked in the readme but there was no example with this type of data, so I downloaded the code and found it, I saw that the slash / is used.