PAK3 and Intellectual disability: Finding a pathogenic variant in PAK3 will help clinicians with diagnosis and genetic counseling, with implications for expressivity of both severe (e.g., sleep‐related hypermotor epilepsy, intellectual disability), and milder (e.g., facial dysmorphism) phenotypes, depending on whether the pathogenic variant is inherited by a male or female offspring, or is gonadal mosaic in female offspring.