Where to obtain so much account info?

[cxp-13]

For example in amm deposit instruction, Where to get the amm、amm_authority eg? plz add ts test code.

pub struct ProxyDeposit<'info> {
    /// CHECK: Safe
    pub amm_program: UncheckedAccount<'info>,
    /// CHECK: Safe. Amm Account
    #[account(mut)]
    pub amm: UncheckedAccount<'info>,
    /// CHECK: Safe. Amm authority, a PDA create with seed = [b"amm authority"]
    #[account()]
    pub amm_authority: UncheckedAccount<'info>,
    /// CHECK: Safe. AMM open_orders Account.
    #[account()]
    pub amm_open_orders: UncheckedAccount<'info>,
    /// CHECK: Safe. AMM target orders account. To store plan orders infomations.
    #[account(mut)]
    pub amm_target_orders: UncheckedAccount<'info>,
    /// CHECK: Safe. LP mint account. Must be empty, owned by $authority.
    #[account(mut)]
    pub amm_lp_mint: UncheckedAccount<'info>,
    /// CHECK: Safe. amm_coin_vault account, $authority can transfer amount.
    #[account(mut)]
    pub amm_coin_vault: UncheckedAccount<'info>,
    /// CHECK: Safe. amm_pc_vault account, $authority can transfer amount.
    #[account(mut)]
    pub amm_pc_vault: UncheckedAccount<'info>,
    /// CHECK: Safe. OpenBook market account, OpenBook program is the owner.
    pub market: UncheckedAccount<'info>,
    /// CHECK: Safe. OpenBook market event queue account, OpenBook program is the owner.
    pub market_event_queue: UncheckedAccount<'info>,
    /// CHECK: Safe. User token coin to deposit into.
    #[account(mut)]
    pub user_token_coin: UncheckedAccount<'info>,
    /// CHECK: Safe. User token pc to deposit into.
    #[account(mut)]
    pub user_token_pc: UncheckedAccount<'info>,
    /// CHECK: Safe. User lp token, to deposit the generated tokens, user is the owner
    #[account(mut)]
    pub user_token_lp: UncheckedAccount<'info>,
    /// CHECK: Safe. User wallet account
    #[account(mut)]
    pub user_owner: Signer<'info>,
    /// CHECK: Safe. The spl token program
    pub token_program: Program<'info, Token>,
}