int getErrorCode() Returns formatter's last error code. Always returns the UZEROERROR
bool|string format(number $value, int $type = self::TYPE_DEFAULT) Format a number.
bool|string getTextAttribute(int $attr) Not supported. Returns a formatter text attribute value
string getLocale(int $type = Locale::ACTUAL_LOCALE) Returns the formatter's locale. The
bool setAttribute(int $attr, int $value) Set an attribute.
bool|string getSymbol(int $attr) Not supported. Returns a formatter symbol value.
bool|int getAttribute(int $attr) Returns an attribute value.
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