Function eval_v2_op_step 

pub fn eval_v2_op_step<'a>(
    op_step: &V2OpStep,
    pipe_value: EvalValue,
    record: &'a Value,
    context: Option<&'a Value>,
    out: &'a Value,
    path: &str,
    ctx: &V2EvalContext<'a>,
) -> Result<EvalValue, TransformError>

Evaluate a v2 op step with a pipe value as implicit first argument