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: consistency.rs
    path of file: ./repos/readyset/readyset-client/src
    
    the code of the file until where you have to start completion: //! Primitives and structs related to maintaining different consistency
//! models within the ReadySet dataflow graph.
use std::collections::HashMap;

use proptest::arbitrary::Arbitrary;
use serde::{Deserialize, Serialize};

use crate::LocalNodeIndex;

/// The timestamp maps a each base table to a monotonically increasing
/// identifier, the transaction id of the last transaction executed on the
/// table. Timestamps may call `satisfies` to verify if another timestamp
/// is sufficiently up to date to satisfy read-your-write guarantees.
#[derive(Clone, Default, Debug, Serialize, Deserialize, PartialEq, Eq)]
pub struct Time
    
    pub fn min(timestamps: &[&Timestamp]) -> Timestamp {
        // Iterate over each timestamps maps. Keep the minimum value seen in
        // the returned map.
        let mut ret = Timestamp::default();
        for t in timestamps {
            for (table, value) in t.map.iter() {
                if let Some(current_value) = ret.map.get_mut(table) {
                    // Set current_value to the minimum across all the maps.
                    if &*current_value > value {
                        *current_value = *value;
                    }
                } else {
                    ret.map.insert(*table, *value);
                }
            }
        }

        ret
    }