Hello my teacher. Can you write the explanations for each line of this code? I have to explain in class tomorrow. Why was the code used? What do we write next to "def" mean? please explain in detail. thanks a lot!

import time

class UniformLCG:

def __init__(self, seed=None, a=7711132081, b=3590204129, m=2 ** 32): if seed is None: seed = int(time.time()) self.next_val = seed self.a = a self.b = b self.m = m

def next(self): self.next_val = (self.a * self.next_val + self.b) % self.m return self.next_val / self.m

class Random_Character: def __init__(self): self.rng = UniformLCG() self.chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGZHIJKLMNOPQRSTUVWXYZ' self.indices = dict((char, idx) for idx, char in enumerate(self.chars))

def random_char_among_specified(self, spec_string): chosen_idx = int(len(spec_string) * self.rng.next()) return spec_string[chosen_idx]

def random_char(self): return self.random_char_among_specified(self.chars)

def random_char_in_range(self, char1, char2): return self.random_char_among_specified(self.chars[self.indices[char1]:self.indices[char2] + 1])

def get_chars(self, num_chars=1): return ''.join([self.random_char() for _ in range(num_chars)])

def get_chars_in_range(self, char1, char2, num_chars=1): return ''.join([self.random_char_in_range(char1, char2) for _ in range(num_chars)])

def get_chars_among_specified(self, spec_string, num_chars=1): return ''.join([self.random_char_among_specified(spec_string) for _ in range(num_chars)])

def get_random_sentence(self, min_words=3, max_words=10, min_word_size=2, max_word_size=10): num_words = int((max_words - min_words + 1) * self.rng.next()) + min_words

words = [] for _ in range(num_words): word_size = int((max_word_size - min_word_size + 1) * self.rng.next()) + min_word_size

words.append(self.get_chars_in_range('a', 'z', word_size))

return ' '.join(words) + '.'