poLCA - Latent Class how to do the adjusted Lo-Mendell-Rubin (LMR) test with R

Good afternoon, I am trying to perform Lo, Mendell and Rubin's (2001) adjusted test (LMR) in order to decide the optimal number of classes in LCA. I performed the command with poLCA, but I didn't find any command to perform it. Is there someone that can help me? Thank you very much!