Auto Sell

/**
* Retrieves a HashMap containing the currency values for selling a specific material for a player.
*
* @param m The material for which currency values are to be retrieved.
* @param uuid The UUID of the player for whom currency values are to be retrieved.
* @return A HashMap containing the currency values for the material.
*/
public HashMap<String, Double> getMaterialCurrencies(Material m, UUID uuid) {
   // Implementation here
}

/**
* Checks if a material is saleable.
*
* @param m The material to check for saleability.
* @return True if the material can be sold using Autosell, false otherwise.
*/
public boolean isMatSaleable(Material m) {
   // Implementation here
}

/**
* Sells a specified amount of a material for a player.
*
* @param uuid The UUID of the player who is selling the material.
* @param m The material to be sold.
* @param amount The amount of the material to be sold.
*/
public void sellMaterial(UUID uuid, Material m, double amount) {
   // Implementation here
}

/**
* Sells a batch of materials along with their specified amounts for a player.
*
* @param uuid The UUID of the player who is selling the materials.
* @param materials A HashMap containing materials as keys and their corresponding amounts as values.
*/
public void sellMaterials(UUID uuid, HashMap<Material, Double> materials) {
   // Implementation here
}