Function resolvePyNamedUnion

scripts/codegen/python.ts:1811–1838

(
    typeName: string,
    schemas: JSONSchema7[],
    ctx: PyCodegenCtx,
    description?: string
)

}

function resolvePyNamedUnion(
    typeName: string,
    schemas: JSONSchema7[],
    ctx: PyCodegenCtx,
    description?: string
): PyResolvedType | undefined {
    const members = schemas
        .filter((schema) => !isPyNullLikeSchema(schema))
        .map((schema) => getPyNamedSchemaType(schema, ctx));

    if (members.length === 0 || members.some((member) => member === undefined)) {
        return undefined;
    }

    const namedMembers = members as Array<{ typeName: string; resolved: PyResolvedType }>;
    const aliasName = getOrCreatePyUnionAlias(
        typeName,
        namedMembers.map((member) => member.typeName),
        ctx,
        description
    );

    return {
        annotation: aliasName,
        fromExpr: (expr) => `from_union([${namedMembers.map((member) => member.resolved.fromExpr).map((fromExpr) => fromExpr("x")).map((expr) => `lambda x: ${expr}`).join(", ")}], ${expr})`,
        toExpr: (expr) => `from_union([${namedMembers.map((member) => member.resolved.toExpr).map((toExpr) => toExpr("x")).map((expr) => `lambda x: ${expr}`).join(", ")}], ${expr})`,
    };
}

function getOrCreatePyEnum(
    enumName: string,