Function any_ecdsa_type 

pub fn any_ecdsa_type(
    der: &PrivateKeyDer<'_>,
) -> Result<Arc<dyn SigningKey>, Error>

Available on crate features aws_lc_rs and rustls only.

Parse der as any ECDSA key type, returning the first which works.

Both SEC1 (PEM section starting with ‘BEGIN EC PRIVATE KEY’) and PKCS8 (PEM section starting with ‘BEGIN PRIVATE KEY’) encodings are supported.