Drupal Coding Standards Issues

Problem/Motivation

Getting following error/warnings

FILE: /app/modules/contrib/advanced_help_hint/README.md
----------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
----------------------------------------------------------------------
118 | ERROR | [x] Expected 1 newline at end of file; 0 found
----------------------------------------------------------------------
PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
----------------------------------------------------------------------

FILE: /app/modules/contrib/advanced_help_hint/src/Hint.php
---------------------------------------------------------------------------------------------------------------------------------------------
FOUND 7 ERRORS AND 17 WARNINGS AFFECTING 23 LINES
---------------------------------------------------------------------------------------------------------------------------------------------
21 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
22 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
24 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
28 | WARNING | [ ] \Drupal calls should be avoided in classes, use dependency injection instead
29 | WARNING | [ ] \Drupal calls should be avoided in classes, use dependency injection instead
36 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
37 | ERROR | [x] Short array syntax must be used to define arrays
46 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
47 | ERROR | [x] Short array syntax must be used to define arrays
58 | ERROR | [x] Expected 1 space after closing parenthesis; found 2
59 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
61 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
65 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
70 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
72 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
76 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
81 | ERROR | [x] Expected newline after closing brace
81 | ERROR | [x] Expected 1 space after closing parenthesis; found 2
85 | WARNING | [ ] Line exceeds 80 characters; contains 90 characters
86 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
87 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
89 | WARNING | [ ] t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
94 | ERROR | [x] Expected 1 blank line after function; 2 found
97 | ERROR | [x] The closing brace for the class must have an empty line before it
---------------------------------------------------------------------------------------------------------------------------------------------
PHPCBF CAN FIX THE 7 MARKED SNIFF VIOLATIONS AUTOMATICALLY
---------------------------------------------------------------------------------------------------------------------------------------------

Time: 1.2 secs; Memory: 10MB

Steps to reproduce

Run following command

phpcs --standard="Drupal,DrupalPractice" --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml modules/contrib/advanced_help_hint/

Proposed resolution

Above error/warnings need to be fixed