code: def _FieldSkipper():
      """Constructs the SkipField function."""
  
      WIRETYPE_TO_SKIPPER = [
          _SkipVarint,
          _SkipFixed64,
          _SkipLengthDelimited,
          _SkipGroup,
          _EndGroup,
          _SkipFixed32,
          _RaiseInvalidWireType,
          _RaiseInvalidWireType,
      ]
  
      wiretype_mask = wire_format.TAG_TYPE_MASK
  
      def SkipField(buffer, pos, end, tag_bytes):
          """Skips a field with the specified tag.
  
          |pos| should point to the byte immediately after the tag.
  
          Returns:
              The new position (after the tag value), or -1 if the tag is an end-group
              tag (in which case the calling loop should break).
          """
  
          # The wire type is always in the first byte since varints are little-endian.
          wire_type = ord(tag_bytes[0:1]) & wiretype_mask
          return WIRETYPE_TO_SKIPPER[wire_type](buffer, pos, end)
  
      return SkipField
  
imports: import struct
  import sys
  import six
  from google.protobuf.internal import containers
  from google.protobuf.internal import encoder
  from google.protobuf.internal import wire_format
  from google.protobuf import message
label_desc: Use image node_id 27 for calling a global function with example usage: _FieldSkipper() and returns: SkipField, WIRETYPE_TO_SKIPPER