code: def TagByteSize(field_number):
      """Returns the bytes required to serialize a tag with this field number."""
      # Just pass in type 0, since the type won't affect the tag+type size.
      return _VarUInt64ByteSizeNoTag(PackTag(field_number, 0))
  
imports: import struct
  from google.protobuf import descriptor
  from google.protobuf import message
label_desc: Use image node_id 25 for calling a global function with example usage: TagByteSize(field_number) and returns: _VarUInt64ByteSizeNoTag