fill
fun fillWithSomeTestLinearStates(txCount: Int, externalId: String? = null, participants: List<AbstractParty> = emptyList(), uniqueIdentifier: UniqueIdentifier? = null, linearString: String = "", linearNumber: Long = 0, linearBoolean: Boolean = false, linearTimestamp: Instant = now(), constraint: AttachmentConstraint = AutomaticPlaceholderConstraint, includeMe: Boolean = true): Vault<LinearState>