# Functions
InitEtcdClient initializes an etcd client that connects to PD ETCD server.
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# Structs
InfoSyncer syncs TiProxy topology to ETCD and queries TiDB topology from ETCD.
PrometheusInfo is the info of prometheus.
TiDBInfo is the info of TiDB.
TiDBTopologyInfo is the topology info of TiDB.
TopologyInfo is the info of TiProxy.