class_docstr: Deltafier layer computing the difference between the current and the previous input; can only
  be used as preprocessing layer (specification key: `deltafier`).
  
  Args:
      concatenate (False | int >= 0): Whether to concatenate instead of replace deltas with
          input, and if so, concatenation axis
          (<span style="color:#00C000"><b>default</b></span>: false).
      name (string): Layer name
          (<span style="color:#00C000"><b>default</b></span>: internally chosen).
      input_spec (specification): <span style="color:#00C000"><b>internal use</b></span>.
class_docstr_tok: ["Deltafier","layer","computing","the","difference","between","the","current","and","the","previous","input",";","can","only","be","used","as","preprocessing","layer","(","specification","key",":","`","deltafier","`",")",".","Args",":","concatenate","(","False","|","int",">","=","0",")",":","Whether","to","concatenate","instead","of","replace","deltas","with","input",",","and","if","so",",","concatenation","axis","(","<","span","style=","''","color",":","#","00C000","''",">","<","b",">","default","<","\/b",">","<","\/span",">",":","false",")",".","name","(","string",")",":","Layer","name","(","<","span","style=","''","color",":","#","00C000","''",">","<","b",">","default","<","\/b",">","<","\/span",">",":","internally","chosen",")",".","input_spec","(","specification",")",":","<","span","style=","''","color",":","#","00C000","''",">","<","b",">","internal","use","<","\/b",">","<","\/span",">","."]
code: def __init__(self, *, concatenate=False, name=None, input_spec=None):
      self.concatenate = concatenate
  
      super().__init__(name=name, input_spec=input_spec)
  
      self.architecture_kwargs["concatenate"] = str(concatenate)
  
imports: import tensorflow
  from tensorforce.core import parameter_modules, SignatureDict, TensorSpec, tf_function, tf_util
  from tensorforce.core.layers import Layer
label_desc: Use image node_id 1 to create a new Deltafier object from inherited base classes: PreprocessingLayer with example: obj = Deltafier()