You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: load.rs
    path of file: ./repos/delta-rs/crates/core/src/operations
    
    the code of the file until where you have to start completion: use std::sync::Arc;

use datafusion::datasource::TableProvider;
use datafusion::execution::context::{SessionContext, TaskContext};
use datafusion::physical_plan::coalesce_partitions::CoalescePartitionsExec;
use datafusion::physical_plan::{ExecutionPlan, SendableRecordBatchStream};
use futures::future::BoxFuture;

use super::transaction::PROTOCOL;
use crate::errors::{DeltaResult, DeltaTableError};
use crate::logstore::LogStoreRef;
use crate::table::state::DeltaTableState;
use crate::DeltaTable;

#[derive(Debug, Clone)]
pub struct LoadBuilder {
    /// A snapshot of the to-be-loaded table's state
    snapshot: DeltaTableState,
    /// Delta object store for hand
    
    async fn test_load_with_columns() -> TestResult {
        let batch = get_record_batch(None, false);
        let table = DeltaOps::new_in_memory().write(vec![batch.clone()]).await?;

        let (_table, stream) = DeltaOps(table).load().with_columns(["id", "value"]).await?;
        let data = collect_sendable_stream(stream).await?;

        let expected = vec![
            "+----+-------+",
            "| id | value |",
            "+----+-------+",
            "| A  | 1     |",
            "| B  | 2     |",
            "| A  | 3     |",
            "| B  | 4     |",
            "| A  | 5     |",
            "| A  | 6     |",
            "| A  | 7     |",
            "| B  | 8     |",
            "| B  | 9     |",
            "| A  | 10    |",
            "| A  | 11    |",
            "+----+-------+",
        ];

        assert_batches_sorted_eq!(&expected, &data);
        Ok(())
    }