#Python please!!!

Write a function `middle_character(string)` that

- prints the middle character(s) of the string.

-if the string length is odd, there's only one middle character. For example, the middle character of "123" is '2';

-if the string length is even, there will be two middle characters. For example, the middle characters of "abcd" are "bc";

For example:

Test	Result
middle_character('123')	2
middle_character('abcd')	bc