update_transaction_mass (Func)

Calculate and update the mass field of an unsigned transaction.

PARAMETER	DESCRIPTION
network_id	The network identifier. TYPE: NetworkId
tx	The transaction to update. TYPE: Transaction
minimum_signatures	Minimum signatures per input (default: 1). TYPE: Optional[int] DEFAULT: None

RETURNS	DESCRIPTION
bool	True if mass is within limits and was updated, False if too large. TYPE: bool

RAISES	DESCRIPTION
Exception	If mass calculation fails.