interceptors:
  - type: transformer
    actions:
      - action: replaceRegex(body)  
        expression: <string> // The RE2 regular expression. Each named capture group will be replaced with the value given in `replace`
        replace: <string> //
      ...

    actions:
      - action: replaceRegex(body)  // SSN
        expression: '([0-9]{3}-[0-9]{2}-[0-9]{4})'
        replace: '*SSN*'
      - action: replaceRegex(body)  // IP4
        expression: '(\d{1,3}[.]\d{1,3}[.]\d{1,3}[.]\d{1,3})'
        replace: '*IP4*' 
      - action: replaceRegex(body)  // email
        expression: '([\w\.=-]+@[\w\.-]+\.[\w]{2,64})'
        replace: '*email*'