parameters: (flags)
return_statement: return False
docstring: True if the opcode in flags is UPDATE.
  
      @param flags: DNS flags
      @type flags: int
      @rtype: bool
docstring_summary: True if the opcode in flags is UPDATE.
docstring_tokens: True if the opcode in flags is UPDATE .
function: def is_update(flags):
      """True if the opcode in flags is UPDATE.
  
      @param flags: DNS flags
      @type flags: int
      @rtype: bool
      """
      
      if (from_flags(flags) == UPDATE):
          return True
      return False
function_tokens: def is_update ( flags ) : if ( from_flags ( flags ) == UPDATE ) : return True return False