@CanIgnoreReturnValue
    public CompositeAttestationTrustSource addAttestationTrustSource(final AttestationTrustSource source) {
        this.trustSources.add(source);
        return this;
    }
Add attestation trust source.

@param source the source
@return the composite attestation trust source
support/cas-server-support-webauthn-core/src/main/java/org/apereo/cas/webauthn/metadata/CompositeAttestationTrustSource.java