parameters: (self, id, value=None, REQUEST=None, key=None, render_prefix=None)
return_statement: return self._get_sub_form().get_field(id)._render_helper(
            self.generate_subfield_key(id, key=key), value, REQUEST, render_prefix)
docstring: Render a sub field, as part of complete rendering of widget in
        a form. Works like render() but for sub field.
            Added key parameter for ERP5 in order to be compatible with listbox/matrixbox
docstring_summary: Render a sub field, as part of complete rendering of widget in
        a form. Works like render() but for sub field.
            Added key parameter for ERP5 in order to be compatible with listbox/matrixbox
docstring_tokens: Render a sub field as part of complete rendering of widget in a form . Works like render () but for sub field . Added key parameter for ERP5 in order to be compatible with listbox / matrixbox
function: def render_sub_field(self, id, value=None, REQUEST=None, key=None, render_prefix=None):
        """Render a sub field, as part of complete rendering of widget in
        a form. Works like render() but for sub field.
            Added key parameter for ERP5 in order to be compatible with listbox/matrixbox
        """
        return self._get_sub_form().get_field(id)._render_helper(
            self.generate_subfield_key(id, key=key), value, REQUEST, render_prefix)
function_tokens: def render_sub_field ( self , id , value = None , REQUEST = None , key = None , render_prefix = None ) : return self . _get_sub_form ( ) . get_field ( id ) . _render_helper ( self . generate_subfield_key ( id , key = key ) , value , REQUEST , render_prefix )