Thrown by HDWalletCapable.signerForDescriptor when the wallet holds
no key for the requested descriptor — it belongs to another seed, or to an
identity this wallet does not carry. A typed refusal so callers can tell
"not my key" from transient signing failures.
Thrown by HDWalletCapable.signerForDescriptor when the wallet holds no key for the requested descriptor — it belongs to another seed, or to an identity this wallet does not carry. A typed refusal so callers can tell "not my key" from transient signing failures.