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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 analyze(self, scratch, **kwargs):
 """Categorize instances of attempted say and sound synchronization."""

        errors = Counter()
        for script in self.iter_scripts(scratch):
            prev_name, prev_depth, prev_block = '', 0, script.blocks[0]
            gen = self.iter_blocks(script.blocks)
            for name, depth, block in gen:
                if prev_depth == depth:
                    if prev_name in self.SAY_THINK:
                        if name == 'play sound %s until done':
                            if not self.is_blank(prev_block.args[0]):
                                errors += self.check(gen)
                        # TODO: What about play sound?
                    elif prev_name in self.SAY_THINK_DURATION and \
                            'play sound %s' in name:
                        errors['1'] += 1
                    elif prev_name == 'play sound %s':
                        if name in self.SAY_THINK:
                            errors[self.INCORRECT] += 1
                        elif name in self.SAY_THINK_DURATION:
                            if self.is_blank(block.args[0]):
                                errors[self.ERROR] += 1
                            else:
                                errors[self.HACKISH] += 1
                    elif prev_name == 'play sound %s until done' and \
                            name in self.ALL_SAY_THINK:
                        if not self.is_blank(block.args[0]):
                            errors[self.INCORRECT] += 1
                        # TODO: Should there be an else clause here?
                prev_name, prev_depth, prev_block = name, depth, block
        return {'sound': errors}