anchor.diff:        IMPORTING
           !iv_url          TYPE string
           !iv_branch_name  TYPE string
  +        !iv_deepen_level TYPE i DEFAULT 1
         RETURNING
           VALUE(rs_result) TYPE ty_pull_result
         RAISING
  
positive.code:       EXPORTING
          iv_url          = iv_url
          iv_branch_name  = iv_branch_name
        IMPORTING
          et_objects      = rs_result-objects
          ev_branch       = rs_result-commit ).
  
negative.code:       IMPORTING
          !iv_url          TYPE string
          !iv_commit_hash  TYPE zif_abapgit_definitions=>ty_sha1
          !iv_deepen_level TYPE i DEFAULT 1
        RETURNING
          VALUE(rs_result) TYPE ty_pull_result
        RAISING
  