new refund data methods (#624)

Author: dvush

docs/flashbots-auction/advanced/rpc-endpoint.mdx

@@ -867,7 +867,7 @@ The response contains three fields:
 
 ### flashbots_getFeeRefundsByRecipient
 
-The `flashbots_getFeeRefundsByRecipient` JSON-RPC method returns detailed information about [fee refunds](/flashbots-protect/gas-fee-refunds) that have been earned by a specific address.  Our refund process calculates these values weekly.
+The `flashbots_getFeeRefundsByRecipient` JSON-RPC method returns detailed information about [fee refunds](/flashbots-protect/gas-fee-refunds) that have been earned by a specific address.  Our refund process usually calculates these values with a 4 hour delay.
 
 ```json
 {
@@ -913,6 +913,42 @@ The `"cursor"` field is only included if there are more fee refunds to fetch. To
 
 NOTE: This API currently only returns details for bundles included in block 20802497 and later.  To see total fee refunds processed for a specific address since inception, use the `flashbots_getFeeRefundTotalsByRecipient` method.
 
+### flashbots_getFeeRefundsByBundle
+
+The `flashbots_getFeeRefundsByBundle` is similar to `flashbots_getFeeRefundsByRecipient` but returns result for the given bundle.
+
+```json
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "method": "flashbots_getFeeRefundsByBundle",
+  "params": [
+    {
+      bundle_hash,       // String, the hash of the bundle
+    }
+  ]
+}
+```
+
+### flashbots_getFeeRefundsByBlock
+
+The `flashbots_getFeeRefundsByBlock` is similar to `flashbots_getFeeRefundsByRecipient` but returns result for the given block.
+
+```json
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "method": "flashbots_getFeeRefundsByBlock",
+  "params": [
+    {
+      block_number,       // String, hex-encoded block number (e.g. 0x15d0280)
+    }
+  ]
+}
+```
+
+
+
 ### flashbots_setFeeRefundRecipient
 
 The `flashbots_setFeeRefundRecipient` JSON-RPC method allows a user to "delegate" their [fee refunds](/flashbots-auction/advanced/gas-fee-refunds) to a specific wallet address.  Two addresses must be provided, the first is the address associated with the signing key used to authenticate your request, while the second is the address to send refunds to.