chain/getNetworkHashPower
Gets hash power from the chain from a sequence or block range.
If no blocks are provided, the last 120 blocks will be used. If no sequence is provided, the head will be used.
Request
{
  blocks?: number | null
  sequence?: number | null
}
Response
{
  hashesPerSecond: number;
  blocks: number;
  sequence: number;
}