@Override
    public final boolean supports(final Class<?> clazz) {
        return ServerCall.class.isAssignableFrom(clazz);
    }
Abstract implementation of {@link GrpcSecurityMetadataSource} which resolves the secured object type to a
{@link ServerCall}.

@author Daniel Theuke (daniel.theuke@aequitas-software.de)
grpc-server-spring-boot-starter/src/main/java/net/devh/boot/grpc/server/security/check/AbstractGrpcSecurityMetadataSource.java