code: def with_false_negative_genotypes(gt):
      """Returns a set of genotypes that includes false negatives.
  
      This function takes a concrete genotype for a Variant, such as (0, 1), and
      returns a set of genotypes that includes gt as well as all possible genotypes
      consistent with some of the alleles in gt being missed. For example, here are
      a few outputs for help understand what this means:
  
        input genotype (gt) => returned set of genotypes
        ------------------------------------------------
  
        # A hom-ref genotype doesn't have any alleles to miss.
        (0, 0)  => {(0, 0)}
  
        # Might miss the 1 allele, or not.
        (0, 1)  => {(0, 0), (0, 1)}
  
        # We could miss one, or both of the 1 alleles.
        (1, 1)  => {(0, 0), (0, 1), (1, 1)}
  
        # Multi-allelics are more complex, in that we could miss either the 1 or the
        # 2 allele, or both.
        (1, 2)  => {(0, 0), (0, 1), (0, 2), (1, 2)}
  
      Args:
        gt: iterable[int]: A genotype for a Variant, such as [0, 1] or [1, 1].
  
      Returns:
        A sorted list of tuples containing diploid genotypes.
      """
      alts = set(gt) - {0}
      return sorted(
          list({(0, 0), tuple(gt)} | {(0, alt) for alt in alts})
      )
  
imports: import collections
  import copy
  import enum
  import heapq
  import itertools
  from absl import logging
  from deepvariant.labeler import variant_labeler
  from deepvariant.protos import deepvariant_pb2
  from third_party.nucleus.io import fasta
  from third_party.nucleus.util import ranges
  from third_party.nucleus.util import variant_utils
  from third_party.nucleus.util import variantcall_utils
label_desc: Use image node_id 3 for calling a global function with example usage: with_false_negative_genotypes(gt) and returns: sorted