code: public final void setCaseSensitivity(@NonNull final Case caseSensitivty) {
          Condition.INSTANCE.ensureNotNull(caseSensitivty, "The case sensitivity may not be null");
          this.caseSensitivity = caseSensitivty;
      }
docs: Sets the case sensitivity, which should be used by the validator.
  
  @param caseSensitivty
  The case senstivitiy, which should be set, as a value of the enum {@link Case}. The
  value may either be <code>UPPERCASE</code>, <code>LOWERCASE</code> or
  <code>CASE_INSENSITIVE</code>