Help with python please will rate!

Python: Cypher Function Create a function that will take a phrase and either coded or decode the phrase (use only lowercase letters and spaces). Name function "cypher. Py" with two inputs and one output. The first input is a string to code or decode and the second input is an integer where 0 tells the converted string Choose a cypher code and enter your 1. 2. on code and 1 tells it to decode the string. The one output is the 3. as a dictionary- ex. ("a": "n" character for each of the 26 letters and a The code must include an space. (Do not repeat any characters.) 4. Create an equivalent de-cypher key and enter it as a de-cypher dictionary which could be usd to return the code into the original characters. 5. Loop through the characters in the and find each letter in the dictionary and aes the hin use concatenation to create the resulting string