docs: def _resolve_dependencies(self, cur, dependencies):
          """
          Function checks if dependant packages are installed in DB
          """
          list_of_deps_ids = []
          _list_of_deps_unresolved = []
          _is_deps_resolved = True
          for k, v in dependencies.items():
              pgpm.lib.utils.db.SqlScriptsHelper.set_search_path(cur, self._pgpm_schema_name)
              cur.execute("SELECT _find_schema('{0}', '{1}')"
                          .format(k, v))
              pgpm_v_ext = tuple(cur.fetchone()[0][1:-1].split(','))
              try:
                  list_of_deps_ids.append(int(pgpm_v_ext[0]))
              except:
                  pass
              if not pgpm_v_ext[0]:
                  _is_deps_resolved = False
                  _list_of_deps_unresolved.append("{0}: {1}".format(k, v))
  
          return _is_deps_resolved, list_of_deps_ids, _list_of_deps_unresolved