`microzig.hal` is void for stm32f429idiscovery

[JAicewizard]

sample code:

const microzig = @import("microzig");
const hal = microzig.hal;
pub fn main() !void {
    hal.parse_pin("PG13");
}

sample build (adapted from the getting started guide):

const std = @import("std");
const microzig = @import("microzig");

const MicroBuild = microzig.MicroBuild(.{
    .stm32 = true,
});

pub fn build(b: *std.Build) void {
    const mz_dep = b.dependency("microzig", .{});
    const mb = MicroBuild.init(b, mz_dep) orelse return;

    const firmware = mb.add_firmware(.{
        .name = "blinky",
        .target = mb.ports.stm32.boards.stm32f429idiscovery,
        .optimize = .ReleaseSmall,
        .root_source_file = b.path("src/main.zig"),
    });

    // We call this twice to demonstrate that the default binary output for
    // RP2040 is UF2, but we can also output other formats easily
    mb.install_firmware(firmware, .{ });
    mb.install_firmware(firmware, .{ .format = .elf });
}

Expected output: A working program that does nothing.

Output:

src/main.zig:6:8: error: type 'void' has no members
    hal.parse_pin("PG13");
    ~~~^~~~~~~~~~

Looking at https://github.com/ZigEmbeddedGroup/microzig/blob/48582bf8be10d024466a97a4dfa28470d5ebee14/port/stmicro/stm32/src/hals/STM32F429.zig it looks like hal should be filled with something, at least more than void. Am I doing something wrong? Is there a missing step that needs to be done to generate the hal?