Fix imports, avoid using `import *'

[todo]

speech-recognition/src/main.py

Lines 2 to 7 in 3b2401d

 # TODO: Fix imports, avoid using `import *' 
 from sr import * 
  
 if __name__ == "__main__": 
     models: List[HMM] = [] 
     # for digit in digit_names: 

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This issue was generated by todo based on a TODO comment in 3b2401d. It's been assigned to @tjysdsg because they committed the code.