In Python Please

Sample dictionary programs Write a function called keyCount(myDictionary) which takes in a dictionary as a parameter and returns an integer representing the number of keys in the dictionary Write a function called valueCount(myDictionary) which takes in a dictionary as a parameter and returns an integer representing the number of UNIQUE values in the dictionary Write a function called valueCount(myDictionary,value) which takes in a dictionary as a parameter and returns an integer representing how many times THAT value is a value in the dictionary Write a function called setValue(myDictionary, key, newWalue) which takes in a dictionary as a parameter, locates the key in the dictionary and replaces the existing value with the newValue parameter. Write a function called mostCommon(myString) which takes in a string and returns the most common letter in that string. Write a function called letterCounts(mystring) which takes in a string and returns a dictionary of letter counts in that string