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: mod.rs
    path of file: ./repos/diesel/diesel/src/pg/types
    
    the code of the file until where you have to start completion: //! PostgreSQL specific types

mod array;
#[doc(hidden)]
pub(in crate::pg) mod date_and_time;
#[doc(hidden)]
pub(in crate::pg) mod floats;
mod integers;
#[cfg(feature = "ipnet-address")]
mod ipnet_address;
#[cfg(feature = "serde_json")]
mod json;
mod mac_addr;
#[doc(hidden)]
pub(in crate::pg) mod money;
#[cfg(feature = "network-address")]
m
    
    /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
    /// #     use diesel::insert_into;
    /// #     use self::contacts::dsl::*;
    /// #     let connection = &mut connection_no_data();
    /// #     diesel::sql_query("CREATE TABLE contacts (
    /// #         id SERIAL PRIMARY KEY,
    /// #         name VARCHAR NOT NULL,
    /// #         address JSONB NOT NULL
    /// #     )").execute(connection)?;
    /// let santas_address: serde_json::Value = serde_json::from_str(r#"{
    ///     "street": "Article Circle Expressway 1",
    ///     "city": "North Pole",
    ///     "postcode": "99705",
    ///     "state": "Alaska"
    /// }"#)?;
    /// let inserted_address = insert_into(contacts)
    ///     .values((name.eq("Claus"), address.eq(&santas_address)))
    ///     .returning(address)
    ///     .get_result::<serde_json::Value>(connection)?;
    /// assert_eq!(santas_address, inserted_address);
    /// #     Ok(())
    /// # }