def munmap(self, start, size):
for addr in range(start, start + size):<EOL><INDENT>if len(self._symbols) == <NUM_LIT:0>:<EOL><INDENT>break<EOL><DEDENT>if addr in self._symbols:<EOL><INDENT>del self._symbols[addr]<EOL><DEDENT><DEDENT>super().munmap(start, size)<EOL>
Deletes the mappings for the specified address range and causes further
references to addresses within the range to generate invalid memory
references.

:param start: the starting address to delete.
:param size: the length of the unmapping.