docs: def _set(self, schema):
          """Set a schema from another schema"""
          if isinstance(schema, CommonSchema):
              self._spl_type = False
              self._schema = schema.schema()
              self._style = self._default_style()
          else:
              self._spl_type = schema._spl_type
              self._schema = schema._schema
              self._style = schema._style