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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 diff_charsToLines(self, diffs, lineArray):
 """Rehydrate the text in a diff from a string of line hashes to real lines of text. Args: diffs: Array of diff tuples. lineArray: Array of unique strings. """

    for i in range(len(diffs)):
      text = []
      for char in diffs[i][1]:
        text.append(lineArray[ord(char)])
      diffs[i] = (diffs[i][0], "".join(text))