Stream_avg_fields
aggregate avg on columns
type Stream_avg_fields {
  assetDecimalsValue: Float
  canceledTime: Float
  chainId: Float
  cliffAmount: Float
  cliffTime: Float
  depositAmount: Float
  duration: Float
  endTime: Float
  initialAmount: Float
  intactAmount: Float
  position: Float
  renounceTime: Float
  startTime: Float
  subgraphId: Float
  timestamp: Float
  tokenId: Float
  withdrawnAmount: Float
}