lwm2m_senml = [1* record]

record = {
	? bn => tstr,        ; Base Name
	? bt => numeric,     ; Base Time
	? n => tstr,        ; Name
	? t => numeric,     ; Time
	? ( v => numeric // ; Numeric Value
		vs => tstr //   ; String Value
		vb => bool //   ; Boolean Value
		vd => bstr ), ; Data Value
	* key-value-pair
}

; now define the generic versions
key-value-pair = ( label => value )

label = non-b-label / b-label
non-b-label = tstr / uint
b-label = tstr / nint

value = tstr / bstr / numeric / bool

; numeric = number / decfrac
numeric = int


bver = -1  n  = 0   s  = 5
bn  = -2   u  = 1   t  = 6
bt  = -3   v  = 2   ut = 7
bu  = -4   vs = 3   vd = 8
bv  = -5   vb = 4
bs  = -6