code: def run(self, f, jac, y0, t0, t1, f_params, jac_params):
      if self.initialized:
          self.check_handle()
      else:
          self.initialized = True
          self.acquire_new_handle()
  
      if self.ml is not None and self.ml > 0:
          # Banded Jacobian. Wrap the user-provided function with one
          # that pads the Jacobian array with the extra `self.ml` rows
          # required by the f2py-generated wrapper.
          jac = _vode_banded_jac_wrapper(jac, self.ml, jac_params)
  
      args = (
          (f, jac, y0, t0, t1)
          + tuple(self.call_args)
          + (f_params, jac_params)
      )
      y1, t, istate = self.runner(*args)
      self.istate = istate
      if istate < 0:
          unexpected_istate_msg = f"Unexpected istate={istate:d}"
          warnings.warn(
              "{:s}: {:s}".format(
                  self.__class__.__name__,
                  self.messages.get(istate, unexpected_istate_msg),
              ),
              stacklevel=2,
          )
          self.success = 0
      else:
          self.call_args[3] = 2  # upgrade istate from 1 to 2
          self.istate = 2
      return y1, t
  
imports: import re
  import warnings
  from numpy import asarray, array, zeros, isscalar, real, imag, vstack
  from .None import _vode
  from .None import _dop
  from .None import _lsoda
label_desc: Use image node_id 4 for calling the vode obj's underlying member method code with example usage: obj.run(f, jac, y0, t0, t1, f_params, jac_params) and returns: y1,  t