Whether a signer status admits cooperative migration (i.e. a settle() intent should be built for VTXOs under this signer). True for MIGRATABLE and DUE_NOW; false for CURRENT, EXPIRED, and UNKNOWN_SIGNER.
settle()
MIGRATABLE
DUE_NOW
CURRENT
EXPIRED
UNKNOWN_SIGNER
Whether a signer status admits cooperative migration (i.e. a
settle()intent should be built for VTXOs under this signer). True forMIGRATABLEandDUE_NOW; false forCURRENT,EXPIRED, andUNKNOWN_SIGNER.