feat(op-batcher/op-proposer): add InstrumentedClient #109
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Description
Currently neither op-batcher nor op-proposer has metrics related to RPC clients, so we cannot know the performance of requesting L1 and L2 endpoints. We need to solve this problem.
Rationale
We add InstrumentedClient in op-service, which is responsible for collecting metrics for each method.
Example
Example of new metrics:
op_batcher_default_rpc_client_requests_total
op_proposer_default_rpc_client_requests_total
op_batcher_default_rpc_client_request_duration_seconds_bucket
op_proposer_default_rpc_client_request_duration_seconds_bucket
Changes
Notable changes: