cloneContext

pub fn cloneContext(self: Self, allocator: Allocator, new_ctx: anytype) Allocator.Error!HashMapUnmanaged(K, V, @TypeOf(new_ctx), max_load_percentage) {
    var other: HashMapUnmanaged(K, V, @TypeOf(new_ctx), max_load_percentage) = .empty;
    if (self.size == 0)
        return other;

    const new_cap = capacityForSize(self.size);
    try other.allocate(allocator, new_cap);
    other.initMetadatas();
    other.available = @truncate((new_cap * max_load_percentage) / 100);

    var i: Size = 0;
    var metadata = self.metadata.?;
    const keys_ptr = self.keys();
    const values_ptr = self.values();
    while (i < self.capacity()) : (i += 1) {
        if (metadata[i].isUsed()) {
            other.putAssumeCapacityNoClobberContext(keys_ptr[i], values_ptr[i], new_ctx);
            if (other.size == self.size)
                break;
        }
    }

    return other;
}