text: Title: Fix style issue `Inconsistent return statements  PYL-R1710`
  Body: Fix style issue `Inconsistent return statements  PYL-R1710`: https://deepsource.io/gh/scanapi/scanapi/issue/PYL-R1710/occurrences
  
  ![image](https://user-images.githubusercontent.com/2728804/127706151-52032eab-34ef-4c1e-b2cc-74ec44c70678.png)
  
  ![image](https://user-images.githubusercontent.com/2728804/127706210-599bdc3c-f7fc-4078-a42a-4ab6021e2363.png)
  
  Child of https://github.com/scanapi/scanapi/issues/405