Function build_deploy_function 

fn build_deploy_function(
    metadata: &FunctionMetadata,
    constructors: &[&Function],
    state_variables: &[StateVariableMetadata],
    state_index_map: &HashMap<String, usize>,
    state_types: &[ValueType],
    defined_struct_types: &[ValueType],
    event_index_map: &HashMap<String, usize>,
    event_signature_map: &HashMap<String, Vec<ManifestType>>,
    enum_variant_map: &HashMap<String, HashMap<String, u64>>,
    contract_types: &HashSet<String>,
    selector_registry: &SelectorRegistry,
    function_names: &HashSet<String>,
    function_overloads: &HashMap<(String, usize), String>,
    function_param_names: &HashMap<(String, usize), Vec<String>>,
    void_functions: &HashSet<String>,
    super_method_map: &HashMap<String, String>,
) -> Result<Function, Vec<IrDiagnostic>>