code: private void obtainPasswordVerificationPrefix(@NonNull final TypedArray typedArray) {
          String format =
                  typedArray.getString(R.styleable.PasswordEditText_passwordVerificationPrefix);
  
          if (format == null) {
              format = getResources().getString(R.string.password_verification_prefix);
          }
  
          setPasswordVerificationPrefix(format);
      }
docs: Obtains the prefix of helper texts, which are shown depending on the password strength, from
  a specific typed array.
  
  @param typedArray
  The typed array, the prefix should be obtained from, as an instance of the class
  {@link TypedArray}. The typed array may not be null