# Functions
GetEd25519Signer returns Ed25519 Signer with predefined private and public keys.
GetSigner returns a new Signer based on privateKey.
MapECCurveToKeyType makes a mapping of Elliptic Curve to KeyType of kms.
NewCryptoSigner creates a new signer based on crypto if possible.
NewSigner creates a new signer.
# Type aliases
Signer defines generic signer.