class_docstr: The source layer that serves to pass a user data blob into the network.
  
  :param dnn: The neural network.
  :type dnn: object
  :param name: The layer name.
  :type name: str, default=None
  
  .. rubric:: Layer inputs:
  
  The layer has no inputs.
  
  .. rubric:: Layer outputs:
  
  The layer has one output that contains the data blob 
  passed into the last call of set_blob.
docstr: Gets the blob with source data.
          
docstr_tok: ["Gets","the","blob","with","source","data","."]
code: def get_blob(self):
      """Gets the blob with source data."""
      return Blob.Blob(self._internal.get_blob())
  
file_path: neoml/NeoML/Python/neoml/Dnn/Source.py
imports: import neoml.PythonWrapper
  from .Dnn import Layer
  import neoml.Blob
label_desc: Use image node_id 3 for calling the Source obj's underlying member method code with example usage: obj.get_blob() and returns: Blob