You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: type.rs
    path of file: ./repos/sqlx/sqlx-macros-core/src/derives
    
    the code of the file until where you have to start completion: use super::attributes::{
    check_strong_enum_attributes, check_struct_attributes, check_transparent_attributes,
    check_weak_enum_attributes, parse_container_attributes, TypeName,
};
use proc_macro2::{Ident, TokenStream};
use quote::{quote, quote_spanned};
use syn::punctuated::Punctuated;
use syn::token::Comma;
use syn::{
    parse_quote, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed,
    FieldsUnnamed, Variant,
};

pub fn expand_derive_type(input: &DeriveInput) -> syn::Result<TokenStream> {
    let attrs = parse_container_attributes(&input.attrs)?;
    match &input.data {
        Data::Struct(DataStruct {
            fields: Fields::Unnamed(FieldsUnnamed { unnamed, .. }),
            ..
        }) if unnamed.len() == 1 => {
            expand_derive_has_sql_type_transparent(input
    
pub fn expand_derive_type(input: &DeriveInput) -> syn::Result<TokenStream> {
    let attrs = parse_container_attributes(&input.attrs)?;
    match &input.data {
        Data::Struct(DataStruct {
            fields: Fields::Unnamed(FieldsUnnamed { unnamed, .. }),
            ..
        }) if unnamed.len() == 1 => {
            expand_derive_has_sql_type_transparent(input, unnamed.first().unwrap())
        }
        Data::Enum(DataEnum { variants, .. }) => match attrs.repr {
            Some(_) => expand_derive_has_sql_type_weak_enum(input, variants),
            None => expand_derive_has_sql_type_strong_enum(input, variants),
        },
        Data::Struct(DataStruct {
            fields: Fields::Named(FieldsNamed { named, .. }),
            ..
        }) => expand_derive_has_sql_type_struct(input, named),
        Data::Union(_) => Err(syn::Error::new_spanned(input, "unions are not supported")),
        Data::Struct(DataStruct {
            fields: Fields::Unnamed(..),
            ..
        }) => Err(syn::Error::new_spanned(
            input,
            "structs with zero or more than one unnamed field are not supported",
        )),
        Data::Struct(DataStruct {
            fields: Fields::Unit,
            ..
        }) => Err(syn::Error::new_spanned(
            input,
            "unit structs are not supported",
        )),
    }
}