function toDate(date) {
		  (0, _assertString.default)(date);
		  date = Date.parse(date);
		  return !isNaN(date) ? new Date(date) : null;
		}
TIN Validation
Validates Tax Identification Numbers (TINs) from the US, EU member states and the United Kingdom.

EU-UK:
National TIN validity is calculated using public algorithms as made available by DG TAXUD.

See `https://ec.europa.eu/taxation_customs/tin/specs/FS-TIN%20Algorithms-Public.docx` for more information.

US:
An Employer Identification Number (EIN), also known as a Federal Tax Identification Number,
 is used to identify a business entity.

NOTES:
 - Prefix 47 is being reserved for future use
 - Prefixes 26, 27, 45, 46 and 47 were previously assigned by the Philadelphia campus.

See `http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/How-EINs-are-Assigned-and-Valid-EIN-Prefixes`
for more information.