Function dynamic_append_record_primitive 

fn dynamic_append_record_primitive(
    root: &mut Value,
    request: &HttpRequest,
    input_overrides: &BTreeMap<String, Option<String>>,
    primitive: &Value,
    anchor_record_id: &mut i64,
    created_record_count: &mut i64,
) -> Result<(), i32>

Performs dynamic append record primitive.