class_docstr: The GammaExponential kernel.
  
  A generalization of the `ExponentiatedQuadratic` ("squared exponential",
  "Gaussian" or "radial basis function") kernel, this kernel takes the form
  
    ```none
    k(x, y) = amplitude**2 * exp(
        -(||x - y||**2 / (2 * length_scale**2))**power)
    ```
  
  where the double-bars represent vector length (ie, Euclidean, or L2 norm).
  
  The `power` parameter is sometimes referred to as gamma, or as gamma / 2.
  This parameter controls the shape of the kernel.
class_docstr_tok: ["The","GammaExponential","kernel",".","A","generalization","of","the","`","ExponentiatedQuadratic","`","(","``","squared","exponential","''",",","''","Gaussian","''","or","``","radial","basis","function","''",")","kernel",",","this","kernel","takes","the","form","``","`","none","k","(","x",",","y",")","=","amplitude","*","*","2","*","exp","(","-","(","||x","-","y||","*","*","2","\/","(","2","*","length_scale","*","*","2",")",")","*","*","power",")","``","`","where","the","double-bars","represent","vector","length","(","ie",",","Euclidean",",","or","L2","norm",")",".","The","`","power","`","parameter","is","sometimes","referred","to","as","gamma",",","or","as","gamma","\/","2",".","This","parameter","controls","the","shape","of","the","kernel","."]
docstr: Amplitude parameter.
docstr_tok: ["Amplitude","parameter","."]
code: def amplitude(self):
      """Amplitude parameter."""
      return self._amplitude
  
imports: import tensorflow.compat.v2
  from tensorflow_probability.python.internal import assert_util
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import parameter_properties
  from tensorflow_probability.python.internal import tensor_util
  from tensorflow_probability.python.math.psd_kernels import positive_semidefinite_kernel
  from tensorflow_probability.python.math.psd_kernels.internal import util
label_desc: Use image node_id 2 for calling the GammaExponential obj's underlying member method code with example usage: obj.amplitude() and returns: self