message: modify __init__
diff: @@ -2,5 +2,6 @@ from .kernel_methods import *
  from .metrics import *
  from .preprocessing import *
  from .vector_methods import *
  +from .perslay import *
  -__all__ = ["kernel_methods", "metrics", "preprocessing", "vector_methods"]
  +__all__ = ["kernel_methods", "metrics", "preprocessing", "vector_methods", "perslay"]
  