How to use the blockcypher.utils.coin_symbol_from_mkey function in blockcypher

def display_balance_info(wallet_obj, verbose=False):
    if not USER_ONLINE:
        return

    mpub = wallet_obj.serialize_b58(private=False)

    wallet_name = get_blockcypher_walletname_from_mpub(
            mpub=mpub,
            subchain_indices=[0, 1],
            )

    verbose_print('Wallet Name: %s' % wallet_name)
    verbose_print('API Key: %s' % BLOCKCYPHER_API_KEY)

    coin_symbol = coin_symbol_from_mkey(mpub)

    wallet_details = get_wallet_balance(
            wallet_name=wallet_name,
            api_key=BLOCKCYPHER_API_KEY,
            coin_symbol=coin_symbol,
            )
    verbose_print(wallet_details)

    puts('-' * 70 + '\n')
    balance_str = 'Balance: %s' % (
            format_crypto_units(
                input_quantity=wallet_details['final_balance'],
                input_type='satoshi',
                output_type=UNIT_CHOICE,
                coin_symbol=coin_symbol,
                print_cs=True,

print_childprivkey_warning()

    addr_cnt = 0
    for chain_address_obj in chain_address_objs:
        if chain_address_obj['index'] == 0:
            print_external_chain()
        elif chain_address_obj['index'] == 1:
            print_internal_chain()
        print_key_path_header()
        for address_obj in chain_address_obj['chain_addresses']:

            print_path_info(
                    address=address_obj['pub_address'],
                    wif=address_obj['wif'],
                    path=address_obj['path'],
                    coin_symbol=coin_symbol_from_mkey(mpub),
                    )

            addr_cnt += 1

    if addr_cnt:
        puts(colored.blue('\nYou can compare this output to bip32.org'))
    else:
        puts('No matching %s in this subset. Would you like to dump *all* %s instead?' % (
            content_str,
            content_str,
            ))
        if confirm(user_prompt=DEFAULT_PROMPT, default=True):
            dump_all_keys_or_addrs(wallet_obj=wallet_obj)

if chain_int == 0:
                    print_external_chain()
                    print_key_path_header()
                elif chain_int == 1:
                    print_internal_chain()
                    print_key_path_header()
            child_wallet = wallet_obj.get_child_for_path(path)
            if wallet_obj.private_key:
                wif_to_use = child_wallet.export_to_wif()
            else:
                wif_to_use = None
            print_path_info(
                    address=child_wallet.to_address(),
                    path=path,
                    wif=wif_to_use,
                    coin_symbol=coin_symbol_from_mkey(mpub),
                    )

    puts(colored.blue('\nYou can compare this output to bip32.org'))

def display_balance_info(wallet_obj, verbose=False):
    if not USER_ONLINE:
        return

    mpub = wallet_obj.serialize_b58(private=False)

    wallet_name = get_blockcypher_walletname_from_mpub(
            mpub=mpub,
            subchain_indices=[0, 1],
            )

    verbose_print('Wallet Name: %s' % wallet_name)
    verbose_print('API Key: %s' % BLOCKCYPHER_API_KEY)

    coin_symbol = coin_symbol_from_mkey(mpub)

    wallet_details = get_wallet_balance(
            wallet_name=wallet_name,
            api_key=BLOCKCYPHER_API_KEY,
            coin_symbol=coin_symbol,
            )
    verbose_print(wallet_details)

    puts('-' * 70 + '\n')
    balance_str = 'Balance: %s' % (
            format_crypto_units(
                input_quantity=wallet_details['final_balance'],
                input_type='satoshi',
                output_type=UNIT_CHOICE,
                coin_symbol=coin_symbol,
                print_cs=True,

Dicts may also contain WIF and privkeyhex if wallet_obj has private key
    '''
    mpub = wallet_obj.serialize_b58(private=False)

    wallet_name = get_blockcypher_walletname_from_mpub(
            mpub=mpub,
            subchain_indices=[0, 1],
            )

    wallet_addresses = get_wallet_addresses(
            wallet_name=wallet_name,
            api_key=BLOCKCYPHER_API_KEY,
            is_hd_wallet=True,
            used=used,
            zero_balance=zero_balance,
            coin_symbol=coin_symbol_from_mkey(mpub),
            )
    verbose_print('wallet_addresses:')
    verbose_print(wallet_addresses)

    if wallet_obj.private_key:
        master_key = wallet_obj.serialize_b58(private=True)
    else:
        master_key = mpub

    chains_address_paths_cleaned = []
    for chain in wallet_addresses['chains']:
        if chain['chain_addresses']:
            chain_address_paths = verify_and_fill_address_paths_from_bip32key(
                    address_paths=chain['chain_addresses'],
                    master_key=master_key,
                    network=guess_network_from_mkey(mpub),

def guess_network_from_mkey(mkey):
    cs = coin_symbol_from_mkey(mkey)
    return COIN_SYMBOL_TO_BMERCHANT_NETWORK.get(cs)

def send_funds(wallet_obj, change_address=None, destination_address=None, dest_satoshis=None, tx_preference=None):
    if not USER_ONLINE:
        puts(colored.red('BlockCypher connection needed to fetch unspents and broadcast signed transaction.'))
        puts(colored.red('You may dump all your addresses and private keys while offline by selecting option 0 on the home screen.'))
        return

    mpub = wallet_obj.serialize_b58(private=False)
    if not wallet_obj.private_key:
        print_pubwallet_notice(mpub=mpub)
        return

    coin_symbol = str(coin_symbol_from_mkey(mpub))
    verbose_print(coin_symbol)

    wallet_name = get_blockcypher_walletname_from_mpub(
            mpub=mpub,
            subchain_indices=[0, 1],
            )
    wallet_details = get_wallet_transactions(
            wallet_name=wallet_name,
            api_key=BLOCKCYPHER_API_KEY,
            coin_symbol=coin_symbol,
            )
    verbose_print(wallet_details)

    if wallet_details['final_balance'] == 0:
        puts(colored.red("0 balance. You can't send funds if you don't have them available!"))
        return

def send_funds(wallet_obj, change_address=None, destination_address=None, dest_satoshis=None, tx_preference=None):
    if not USER_ONLINE:
        puts(colored.red('BlockCypher connection needed to fetch unspents and broadcast signed transaction.'))
        puts(colored.red('You may dump all your addresses and private keys while offline by selecting option 0 on the home screen.'))
        return

    mpub = wallet_obj.serialize_b58(private=False)
    if not wallet_obj.private_key:
        print_pubwallet_notice(mpub=mpub)
        return

    coin_symbol = str(coin_symbol_from_mkey(mpub))
    verbose_print(coin_symbol)

    wallet_name = get_blockcypher_walletname_from_mpub(
            mpub=mpub,
            subchain_indices=[0, 1],
            )
    wallet_details = get_wallet_transactions(
            wallet_name=wallet_name,
            api_key=BLOCKCYPHER_API_KEY,
            coin_symbol=coin_symbol,
            )
    verbose_print(wallet_details)

    if wallet_details['final_balance'] == 0:
        puts(colored.red("0 balance. You can't send funds if you don't have them available!"))
        return