class_docstr: Class providing the core functionality of a parameter, aka
  value, internal/model parameters, mutation, recombination
  and additional features such as shared random state,
  constraint check, hashes, generation and naming.
  The value field should sent to the function to optimize.
  
  Example
  -------
  >>> ng.p.Array(shape=(2,)).value
  array([0., 0.])
docstr: Mutate parameters of the instance, and then its value
docstr_tok: ["Mutate","parameters","of","the","instance",",","and","then","its","value"]
code: def mutate(self) -> None:
      """Mutate parameters of the instance, and then its value"""
      self._check_frozen()
      self._subobjects.apply("mutate")
      self._layers[-1]._layered_mutate()
  
imports: import uuid
  import warnings
  import numpy
  import nevergrad.common.typing
  from nevergrad.common import errors
  from .None import utils
  from ._layering import ValueProperty
  from ._layering import Layered
  from ._layering import Level
label_desc: Use image node_id 6 for calling the Parameter obj's underlying member method code with example usage: obj.mutate() without return types