def get_instruction(self, idx, off=None):
if off != None:<EOL><INDENT>idx = self.off_to_pos(off)<EOL><DEDENT>return [i for i in self.get_instructions()][idx]<EOL>
Get a particular instruction by using (default) the index of the address if specified

:param idx: index of the instruction (the position in the list of the instruction)
:type idx: int
:param off: address of the instruction
:type off: int

:rtype: an :class:`Instruction` object