YANG Augment Example

Tree
module: mod-1
  grouping parms
    +-- mod-con-1
    |  +-- mod-leaf-1-1?   uint32
    |  +-- mod-leaf-1-2?   uint32
    +-- mod-con-2
       +-- mod-leaf-2-1?          uint32
       +-- mod-leaf-2-2?          uint32
       +-- (mod-choice)?
          +--:(wildcard)
          |  +-- wildcard?        empty
          +--:(stream-handle)
             +-- stream-handle?   empty
module: mod-2
  +--rw mod-con-1
  |  +--rw mod-leaf-1-1?   uint32
  |  +--rw mod-leaf-1-2?   uint32
  +--rw mod-con-2
     +--rw mod-leaf-2-1?          uint32
     +--rw mod-leaf-2-2?          uint32
     +--rw (mod-choice)?
        +--:(wildcard)
        |  +--rw wildcard?        empty
        +--:(stream-handle)
        |  +--rw stream-handle?   empty
        +--:(null-handle)
           +--rw null-handle?     empty


module mod-1 {
   yang-version "1.1";
   namespace
      urn:ieee:exp:yang:mod-1;
   prefix m1;
   organization
      "IEEE";
   contact
      "IEEE";
   description
      "augment test module 1";
   revision 2021-03-01 {
      description
         "module 1";
   }
   grouping parms {
      description
         "parms";
      container mod-con-1 {
         description "mod-con-1";
         leaf mod-leaf-1-1 {
            type uint32;
            description
               "mod-leaf-1-1";
         }
         leaf mod-leaf-1-2 {
            type uint32;
            description
               "mod-leaf-1-2";
         }
      }
      container mod-con-2 {
         description "mod-con-2";
         leaf mod-leaf-2-1 {
            type uint32;
            description
               "mod-leaf-2-1";
         }
         leaf mod-leaf-2-2 {
            type uint32;
            description
               "mod-leaf-2-1";
         }
         choice mod-choice {
            description "mod-choice";
            case wildcard {
               leaf wildcard {
                  type empty;
                  description
                     "wildcard";
                }
            }
            case stream-handle {
               leaf stream-handle {
                  type empty;
                  description
                     "stream-handle";
                }
            }
         }
      }
   }
}


module mod-2 {
   yang-version "1.1";
   namespace
      urn:ieee:exp:yang:mod-2;
   prefix m2;
   import mod-1 {
      prefix m1;
   }
   organization
      "IEEE";
   contact
      "IEEE";
   description
      "augment test module 2";
   revision 2021-03-01 {
      description
         "module 2";
   }

   uses m1:parms {
      augment
         "mod-con-2/mod-choice" {
         case null-handle {
            leaf null-handle {
               type empty;
               description
                  "null-handle";
            }
         }
      }
   }
}