function extractFormattedPhoneNumber(text) {
	// Attempt to extract a possible number from the string passed in.
	const startsAt = text.search(VALID_FORMATTED_PHONE_NUMBER_PART)
	if (startsAt < 0) {
		return
	}
	// Trim everything to the left of the phone number.
	text = text.slice(startsAt)
	// Trim the `+`.
	let hasPlus
	if (text[0] === '+') {
		hasPlus = true
		text = text.slice('+'.length)
	}
	// Trim everything to the right of the phone number.
	text = text.replace(AFTER_PHONE_NUMBER_DIGITS_END_PATTERN, '')
	// Re-add the previously trimmed `+`.
	if (hasPlus) {
		text = '+' + text
	}
	return text
}
Extracts formatted phone number from text (if there's any).
@param  {string} text
@return {string} [formattedPhoneNumber]