https://github.com/powellgenomicslab/scPred/blob/86e62305544cfd933562a707b3cea60a997978d0/R/trainModel.R#L53 ``` if(!is(object, "Seurat") | is(object, "scPred")){ ``` should be ``` if(!(is(object, "Seurat") | is(object, "scPred"))){ ```