LastBlockTime returns the last block time.

Request

• The document declares no server URL.
• Auth
  none declared
• TypeScript
  https://skmtc.dev/crescent-network/apis/crescent-rest-and-grpc-gateway-docs/docs/crescent/mint/v1beta1/last_block_time/get.ts

  A function with typed inputs. Its response is checked against the schema.