extract_statistics() :: %{destinationUriFileCounts: [integer]}

load_statistics() :: %{inputFiles: integer, inputFileBytes: integer, outputRows: integer, outputBytes: integer}

query_statistic() :: %{name: String.t, id: integer, waitRowAvg: float, waitRatioMax: float, readRatioAvg: float, readRatioMax: float, computeRatioAvg: float, computeRatioMax: float, writeRatioAvg: float, writeRatioMax: float, recordsRead: integer, recordsWritten: integer, steps: [query_step]}

query_statistics() :: %{queryPlan: [query_statistic], totalBytesProcessed: integer, totalBytesBilled: integer, billingTier: integer, cacheHit: boolean}

query_step() :: %{kind: String.t, substeps: [String.t]}

t() :: %BigQuery.Types.JobStatistics{creationTime: integer, endTime: integer, extract: extract_statistics, load: load_statistics, query: query_statistics, startTime: integer, totalBytesProcessed: integer}