class_docstr: Normal Distribution
  ----
  This class contains methods relating to the normal distribution for time series.
docstr: The gradient of the location latent variable mu - used for variational inference
  
  Parameters
  ----------
  x : float
      A random variable
  
  Returns
  ----------
  The gradient of the location latent variable mu at x
docstr_tok: ["The","gradient","of","the","location","latent","variable","mu","-","used","for","variational","inference","Parameters","--","--","--","--","--","x",":","float","A","random","variable","Returns","--","--","--","--","--","The","gradient","of","the","location","latent","variable","mu","at","x"]
code: def vi_loc_score(self, x):
      """The gradient of the location latent variable mu - used for variational inference
  
      Parameters
      ----------
      x : float
          A random variable
  
      Returns
      ----------
      The gradient of the location latent variable mu at x
      """
      return (x - self.mu0) / (self.sigma0**2)
  
imports: import numpy
  import scipy.stats
  import scipy.special
  from .family import Family
  from .flat import Flat
  from .gas_recursions import gas_recursion_normal_orderone, gas_recursion_normal_ordertwo
  from .gas_recursions import gasx_recursion_normal_orderone, gasx_recursion_normal_ordertwo
  from .gas_recursions import gas_llev_recursion_normal_orderone, gas_llev_recursion_normal_ordertwo
  from .gas_recursions import gas_llt_recursion_normal_orderone, gas_llt_recursion_normal_ordertwo
  from .gas_recursions import gas_reg_recursion_normal_orderone, gas_reg_recursion_normal_ordertwo
label_desc: Use image node_id 17 for calling the Normal obj's underlying member method code with example usage: obj.vi_loc_score(x) and returns: unknown