Function transfer_simple 

pub fn transfer_simple<'info>(
    mint: AccountInfo<'info>,
    token_program_id: AccountInfo<'info>,
    source_pubkey: Pubkey,
    destination_pubkey: AccountInfo<'info>,
    authority_pubkey: AccountInfo<'info>,
    amount: u64,
    signer_seeds: &[&[u8]],
) -> Result<()>

Transfers SPL tokens from one account to another.

This function facilitates the transfer of SPL tokens between accounts on the Solana blockchain. It uses the spl_token::instruction::transfer function to create the transfer instruction, and signs the transaction using the provided signer_seeds.

Arguments

• mint - The mint account of the token.
• token_program_id - The token program account (usually spl_token).
• source_pubkey - The source account’s public key from which tokens will be transferred.
• destination_pubkey - The destination account’s AccountInfo.
• authority_pubkey - The authority account that will sign the transfer.
• amount - The amount of tokens to transfer.
• signer_seeds - A slice of slices of seeds for signing the transaction.

Example

use simplespl::transfer_simple;
use anchor_lang::solana_program::account_info::AccountInfo;

transfer_simple(
    mint_account_info,
    token_program_account_info,
    source_pubkey,
    destination_account_info,
    authority_account_info,
    500, // Transfer 500 tokens
    &[&signer_seeds],
).unwrap();