curl --request POST \
  --url https://api.mainnet.abs.xyz/eth_getBlockTransactionCountByNumber \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_getBlockTransactionCountByNumber",
  "params": [
    "0x1b4"
  ]
}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x0"
}