Added XML documentation to attachment class

Added missing properties

Author: nefarius

src/CouchDB.Driver/Types/CouchAttachment.cs

@@ -6,6 +6,9 @@
 
 namespace CouchDB.Driver.Types
 {
+    /// <summary>
+    ///     Represents an attachment for a document.
+    /// </summary>
     public sealed class CouchAttachment
     {
         [JsonIgnore]
@@ -26,25 +29,78 @@ public sealed class CouchAttachment
         [JsonIgnore]
         public Uri Uri { get; internal set; }
 
+        /// <summary>
+        ///     Gets whether the attachment object contains stub info and no content. 
+        /// </summary>
         [DataMember]
         [JsonProperty("stub")]
         public bool Stub { get; set; }
 
+        /// <summary>
+        ///     Gets the attachment MIME type.
+        /// </summary>
         [DataMember]
         [JsonProperty("content_type")]
         public string ContentType { get; set; }
 
+        /// <summary>
+        ///     Gets the content hash digest. It starts with prefix which announce hash type (md5-) and continues with
+        ///     Base64-encoded hash digest.
+        /// </summary>
         [DataMember]
         [JsonProperty("digest")]
         public string Digest { get; private set; }
 
+        /// <summary>
+        ///     Gets the real attachment size in bytes. Not available if attachment content requested.
+        /// </summary>
         [DataMember]
         [JsonProperty("length")]
-        public int? Length { get; private set; }
+        public long? Length { get; private set; }
 
+        /// <summary>
+        ///     Gets the revision number when attachment was added.
+        /// </summary>
         [DataMember]
         [JsonProperty("revpos")]
         public int? RevPos { get; private set; }
+
+        /// <summary>
+        ///     Gets the compressed attachment size in bytes.
+        /// </summary>
+        /// <remarks>
+        ///     Available if content_type is in list of compressible types when the attachment was added and the following query
+        ///     parameters are specified:
+        ///     <list type="bullet">
+        ///         <item>
+        ///             <description>att_encoding_info=true when querying a document</description>
+        ///         </item>
+        ///         <item>
+        ///             <description>att_encoding_info=true&amp;include_docs=true when querying a changes feed or a view</description>
+        ///         </item>
+        ///     </list>
+        /// </remarks>
+        [DataMember]
+        [JsonProperty("encoded_length")]
+        public long? EncodedLength { get; private set; }
+
+        /// <summary>
+        ///     Gets the Base64-encoded content. Only populated if queried for and <see cref="Stub"/> is false.
+        /// </summary>
+        /// <remarks>
+        ///     Base64-encoded content. Available if attachment content is requested by using the following query parameters:
+        ///     <list type="bullet">
+        ///         <item>
+        ///             <description>attachments=true when querying a document</description>
+        ///         </item>
+        ///         <item>
+        ///             <description>attachments=true&amp;include_docs=true when querying a changes feed or a view</description>
+        ///         </item>
+        ///     </list>
+        /// </remarks>
+        [DataMember]
+        [JsonProperty("data")]
+        public int? Data { get; private set; }
     }
 }
 #nullable restore