code: def are_expparam_dtypes_consistent(self, expparams):
          
          if self.is_n_outcomes_constant:
              # This implies that all domains are equal, so this must be true
              return True
  
          # otherwise we have to actually check all the dtypes
          if expparams.size > 0:
              domains = self.domain(expparams)
              first_dtype = domains[0].dtype
              return all(domain.dtype == first_dtype for domain in domains[1:])
          else:
              return True
docs: Returns ``True`` iff all of the given expparams 
          correspond to outcome domains with the same dtype.
          For efficiency, concrete subclasses should override this method 
          if the result is always ``True``.
  
          :param np.ndarray expparams: Array of expparamms 
               of type ``expparams_dtype``
          :rtype: ``bool``