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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def stringify(self, string, phrases, parent=None):
 		""" 		Stringifies phrases. 		After parsing of the string via self.parse(), this method takes the 		escaped string and the list of phrases returned by self.parse() and 		replaces the original phrases (with tags) with the Phrase-objects in 		the list and adds the appropriate flag-combinations as determined by 		the string or the position of the phrase (the string if it's in 		self.always, i.e. an 'always' argument). This method also works 		recursively to handle nested phrases (and resetting of parent-phrase 		styles). 		Arguments: 			string (str):
 The escaped string returned by self.parse(). 			phrases (list):
 The list of Phrase-objects returned by self.parse(). 			parent (Phrase):
 For recursive calls, the current parent Phrase. 		Returns: 			The finished, beautifully beautified string. 		Raises: 			errors.ArgumentError: If more positional arguments are requested 								 than were supplied. 		"""


		last_tag = 0

		beauty = ""

		for phrase in phrases:

			beauty += string[last_tag : phrase.opening]

			if phrase.string in self.always and not phrase.override:
				phrase.style = self.always[phrase.string]

			if phrase.arguments:
				combination = 0
				for i in phrase.arguments:
					try:
						combination |= self.positional[i]
					except IndexError:
						raise errors.ArgumentError("Positional argument '{0}' "
							 					   "is out of range"
							 					   "!".format(i))

				phrase.style |= combination

			elif (phrase.string not in self.always or
				  phrase.increment or phrase.override):
				try:
					combination = self.positional[self.counter]

					if phrase.increment or not phrase.override:
						self.counter += 1
				except IndexError:
					self.raise_not_enough_arguments(phrase.string)

				phrase.style |= combination

			phrase.style = flags.codify(phrase.style)

			if phrase.nested:
				phrase.string = self.stringify(phrase.string,
											   phrase.nested,
											   phrase)

			# After a nested phrase is over, we reset the style to the
			# parent style, this gives the notion of nested styles.
			reset = parent.style if parent else ""

			# \033[ signifies the start of a command-line escape-sequence
			beauty += "\033[{0}m{1}\033[0;{2}m".format(phrase.style,
													   phrase,
													   reset)
			last_tag = phrase.closing + 1

		beauty += string[last_tag:]

		return beauty