Macro datapath 

datapath!() { /* proc-macro */ }

The datapath! macro generates datapath struct definitions with parsing and formatting logic.

Example

datapath! {
    struct CaptureRaw_2_0(capture/user_id=Uuid/ts=i64/raw/2.0);
    struct OtherPath {
        pattern: web/domain=String/ts=i64/raw/2.0
        schema: MySchema
    };
}