eth_getUncleCountByBlockNumber
Returns the number of uncles in a block from a block matching the given block number. This method uses 150 credits from your daily balance.
Parameters
block parameter: [Required] A hexadecimal block number, or one of the string tags latest, earliest, pending, safe, or finalized. See the default block parameter.
Returns
block uncle count: A hexadecimal equivalent of the integer representing the number of uncles in the block.