class_docstr: Activation with Alpha Beta Op Superclass
class_docstr_tok: ["Activation","with","Alpha","Beta","Op","Superclass"]
code: def type_inference(self):
      return self.x.sym_type
  
imports: import math
  import numpy
  from coremltools.converters.mil.mil import types
  from coremltools.converters.mil.mil.input_type import DefaultInputs, InputSpec, TensorInputType
  from coremltools.converters.mil.mil.operation import VALUE, Operation, precondition
  from coremltools.converters.mil.mil.ops.defs._op_reqs import register_op
  from .elementwise_unary import elementwise_unary
label_desc: Use image node_id 1 for calling the activation_with_alpha_and_beta obj's underlying member method code with example usage: obj.type_inference() and returns: self