old_contents: from _src.kern import Kern
  from _src.rbf import RBF
  from _src.linear import Linear, LinearFull
  from _src.static import Bias, White
  from _src.brownian import Brownian
  from _src.stationary import Exponential, OU, Matern32, Matern52, ExpQuad, RatQuad, Cosine
  from _src.mlp import MLP
  from _src.periodic import PeriodicExponential, PeriodicMatern32, PeriodicMatern52
  from _src.independent_outputs import IndependentOutputs, Hierarchical
  from _src.coregionalize import Coregionalize
  from _src.ssrbf import SSRBF # TODO: ZD: did you remove this?
  from _src.ODE_UY import ODE_UY
  from _src.ODE_UYC import ODE_UYC
  from _src.ODE_st import ODE_st
  from _src.ODE_t import ODE_t
  from _src.poly import Poly
  from _src.trunclinear import TruncLinear,TruncLinear_inf
  
  # TODO: put this in an init file somewhere
  #I'm commenting this out because the files were not added. JH. Remember to add the files before commiting
  try:
      import sympy as sym
      sympy_available=True
  except ImportError:
      sympy_available=False
  
  if sympy_available:
      from _src.symbolic import Symbolic
      from _src.eq import Eq
      from _src.heat_eqinit import Heat_eqinit
      #from _src.ode1_eq_lfm import Ode1_eq_lfm
  
  
new_contents: from _src.kern import Kern
  from _src.rbf import RBF
  from _src.linear import Linear, LinearFull
  from _src.static import Bias, White
  from _src.brownian import Brownian
  from _src.stationary import Exponential, OU, Matern32, Matern52, ExpQuad, RatQuad, Cosine
  from _src.mlp import MLP
  from _src.periodic import PeriodicExponential, PeriodicMatern32, PeriodicMatern52
  from _src.independent_outputs import IndependentOutputs, Hierarchical
  from _src.coregionalize import Coregionalize
  from _src.ODE_UY import ODE_UY
  from _src.ODE_UYC import ODE_UYC
  from _src.ODE_st import ODE_st
  from _src.ODE_t import ODE_t
  from _src.poly import Poly
  from _src.trunclinear import TruncLinear,TruncLinear_inf
  
  # TODO: put this in an init file somewhere
  #I'm commenting this out because the files were not added. JH. Remember to add the files before commiting
  try:
      import sympy as sym
      sympy_available=True
  except ImportError:
      sympy_available=False
  
  if sympy_available:
      from _src.symbolic import Symbolic
      from _src.eq import Eq
      from _src.heat_eqinit import Heat_eqinit
      #from _src.ode1_eq_lfm import Ode1_eq_lfm
  
  
subject: fix kern/__init__.py