module test-uses-leaf-innertype-base {
    namespace "urn:test:uses:leaf:innertype:base";
    prefix uses-leaf;
    revision 2017-08-09;

    grouping errors {
      leaf error-type {
        type enumeration {
          enum transport {
            description "The transport layer";
          }
          enum rpc {
            description "The rpc or notification layer";
          }
          enum protocol {
            description "The protocol operation layer";
          }
          enum application {
            description "The server application layer";
          }
        }
        mandatory true;
        description
          "The protocol layer where the error occurred.";
      }
    }

    container my-cont {
      uses errors;
    }
}