code: def _find_valid_edges(components, valid_edge_ids):
      """
      Find all edges between two components in a complete undirected graph.
  
      :param components: A [V]-shaped array of boolean component ids. This
          assumes there are exactly two nonemtpy components.
      :param valid_edge_ids: An uninitialized array where output is written. On
          return, the subarray valid_edge_ids[:end] will contain edge ids k for all
          valid edges.
      :returns: The number of valid edges found.
      """
      k = 0
      end = 0
      for v2, c2 in enumerate(components):
          for v1 in range(v2):
              if c2 ^ components[v1]:
                  valid_edge_ids[end] = k
                  end += 1
              k += 1
      return end
  
imports: import itertools
  import math
  import torch
  from torch.distributions import constraints
  from torch.distributions.utils import lazy_property
  from pyro.distributions.torch_distribution import TorchDistribution
label_desc: Use image node_id 6 for calling a global function with example usage: _find_valid_edges(components, valid_edge_ids) and returns: end