code: def mish(x):
      """Mish.
  
      Mish is self regularized and non-monotonous.
  
      Arguments:
        x: Input tensor.
  
      References:
        Mish: A Self Regularized Non-Monotonic Neural Activation Function, Misra.D et. al, 2019.
  
      Links:
          [https://arxiv.org/ftp/arxiv/papers/1908/1908.08681.pdf](https://arxiv.org/ftp/arxiv/papers/1908/1908.08681.pdf)
      """
  
      return x * tf.math.tanh(tf.math.softplus(x))
  
imports: from __future__ import division, print_function, absolute_import
  import tensorflow.compat.v1
  import numpy
  import tflearn
  from .None import initializations
  from .None import variables
  from .utils import get_from_module
label_desc: Use image node_id 18 for calling a global function with example usage: mish(x) and returns: unknown