class_docstr: Test running model for a scalar ODE with 1 parameter
code: def setup_method(self, method):
      def system(y, t, p):
          return np.exp(-t) - p[0] * y[0]
  
      self.system = system
      self.times = np.arange(0, 9)
      self.ode_model = DifferentialEquation(
          func=system, t0=0, times=self.times, n_states=1, n_theta=1
      )
  
imports: import warnings
  import numpy
  import pytensor
  import pytensor.tensor
  import pytest
  from scipy.stats import norm
  import pymc
  from pymc.ode import DifferentialEquation
  from pymc.testing import fast_unstable_sampling_mode
label_desc: Use image node_id 1 for calling the TestErrors obj's underlying member method code with example usage: obj.setup_method(method) and returns: unknown