use crate::syntax::builders::assignment::build_assignment_node;
use crate::syntax::fields::python::named_expression;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;
pub fn reader(
args: &mut SyntaxGraphArgs<'_>,
n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
let variable_id = args.required_field_alt(n_id, named_expression::NAME)?;
let value_id = args.required_field_alt(n_id, named_expression::VALUE)?;
build_assignment_node(args, n_id, variable_id, Some(value_id), None).map(Some)
}