Changed Asn1Object documentation to include references to Nid

    }

    /// Return the string as an array of bytes

    ///

    /// The bytes do not directly corespond to UTF-8 encoding.  To interact with

    /// strings in rust, it is preferable to use [`as_utf8`]

    ///

    /// [`as_utf8`]: struct.Asn1String.html#method.as_utf8

    pub fn as_slice(&self) -> &[u8] {

        unsafe { slice::from_raw_parts(ASN1_STRING_data(self.as_ptr()), self.len()) }

    }

    /// Object Identifier

    ///

    /// Use OBJ_nid2obj() ffi to create objects, not Asn1Object directly.

    /// Represents an ASN.1 Object.  Typically, NIDs, or numeric identifiers

    /// are stored as a table within the [`Nid`] module.  These constants are

    /// used to determine attributes of a certificate, such as mapping the

    /// attribute "CommonName" to "CN" which is represented as the OID of 13.

    /// This attribute is a constant in the [`nid::COMMONNAME`].

    ///

    /// OpenSSL documentation at [`ASN1_OBJECT_new`]

    /// OpenSSL documentation at [`OBJ_nid2obj`]

    ///

    /// [`ASN1_OBJECT_new`]: https://www.openssl.org/docs/man1.1.0/crypto/ASN1_OBJECT_new.html

    /// [`Nid`]: ../nid/index.html

    /// [`nid::COMMONNAME`]: ../nid/constant.COMMONNAME.html

    /// [`OBJ_nid2obj`]: https://www.openssl.org/docs/man1.1.0/crypto/OBJ_obj2nid.html

    pub struct Asn1Object;

    /// Reference to [`Asn1Object`]

    ///