Couchbase using c#

i want know how to write create document function in c#.specialy for data.what i have to take hashtable or what.and how to write in that function.
ex:
{
"_id": “aaa”,
“alternate_contact”: “”,
“list”: [
“xyz”
],
“data”: {
“des”: “”,
“lel”: “”,
“rt”: “”
},
“doc_type”: “profile”,