topic fix: do not update the result of locals() directly

[yoptar]

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Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
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What is the current behavior?

In my environment self is not removed from the args dictionary, so I get an error of multiple self arguments in a constructor method.

Issue Number: N/A

After this fix reader and writer can be actually created

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