Macro make_partition 

macro_rules! make_partition {
    {} => { ... };
    {$($keys:expr => $vals:expr),+ $(,)?} => { ... };
}

Outputs a partition, given native Rust key => value pairings.

Since instantiating protobuf-generated types is very verbose, this macro exists to make partitions (HashMap<String, PartitionFieldValue>) with ease:

use pancake_db_client::make_partition;
use std::time::SystemTime;

let my_partition = make_partition! {
  "t" => SystemTime::now(),
  "action" => "click".to_string(),
  "is_final" => true,
  "int_bucket" => 7,
};

Keys can be any type supporting .to_string(). Values can be i64s, bools, Strings, or Timestamps.