To develop a generative model in Julia for anomaly detection tasks, you can use a Variational Autoencoder (VAE) implemented with Flux.jl. Here is the code reference you can refer to:

In the above code, we are using the following steps:
- Define the VAE: Create encoder and decoder networks to learn the data distribution.
- Loss Function: Combine reconstruction loss (to regenerate inputs) and KL divergence (to regularize the latent space).
- Training: Optimize the model on the dataset.
- Anomaly Detection: Use reconstruction error to identify samples that do not conform to the learned distribution.
Hence, this method trains a generative model to detect anomalies by comparing actual data with its reconstructions.