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: top.rs
    path of file: ./repos/surrealdb/core/src/fnc/util/math
    
    the code of the file until where you have to start completion: use crate::sql::number::Number;
use std::cmp::Reverse;
use std::collections::BinaryHeap;

pub trait Top {
	/// Find the greatest `k` records from the collection in arbetrary order
	/// O(n*k*log(k)) time complex
	fn top(self, k: i64) -> Vec<Number>;
}

impl Top for Vec<Number> {
	fn top(self, k: i64) 
    
	fn top(self, k: i64) -> Vec<Number> {
		// Convert to usize
		let k = k as usize;
		// Create a heap to store the numbers
		let mut heap = BinaryHeap::new();
		// Iterate and store the top numbers
		for (i, v) in self.into_iter().enumerate() {
			heap.push(Reverse(v));
			if i >= k {
				heap.pop();
			}
		}
		// Return the numbers as a vector
		heap.into_iter().map(|x| x.0).collect()
	}