Way of displaying group items under another container

General
4

You may want to align with this IETF RFC draft https://tools.ietf.org/html/draft-ietf-netconf-ssh-client-server-17
Use the IETF YANG 1.1 RFC as a reference guide: https://tools.ietf.org/html/rfc7950#section-9.10
A summary:

 identity public-key-alg-base {
    description
      "Base identity used to identify public key algorithms.";
  }

  identity ecdsa-sha2-nistp256 {
    base public-key-alg-base;
  }

  identity ecdsa-sha2-nistp384 {
    base public-key-alg-base;
  }

  identity ecdsa-sha2-nistp521 {
    base public-key-alg-base;
  }

  identity x509v3-ecdsa-sha2-nistp256 {
    base public-key-alg-base;
  }

  identity x509v3-ecdsa-sha2-nistp384 {
    base public-key-alg-base;
  }

  identity x509v3-ecdsa-sha2-nistp521 {
    base public-key-alg-base;
  }

  container default {
    container trustpoint {
      leaf-list trust {
        tailf:cli-drop-node-name;
        type identityref {
          base public-key-alg-base;
        }
        ordered-by user;
      }
    }
  }