class_docstr: The base class for a network layer.
      
class_docstr_tok: ["The","base","class","for","a","network","layer","."]
code: def __init__(self, internal):
      if not isinstance(internal, PythonWrapper.Layer):
          raise ValueError("The `internal` must be PythonWrapper.Layer")
  
      self._internal = internal
  
imports: import neoml.PythonWrapper
  import neoml.Random
label_desc: Use image node_id 1 to create a new Layer object  with example: obj = Layer(internal)