Is self a well-formed Base64 entity ?

Will return an Error otherwise with info on which part is erroneous.

Property definitions

base64 :: base64 $ Bytes :: check_base64
	# Is `self` a well-formed Base64 entity ?
	#
	# Will return an Error otherwise with info on which part is erroneous.
	fun check_base64: nullable Error do return items.check_base64(length)
lib/base64/base64.nit:215,2--218,70