Measurement name.
OptionaltagsTag set (indexed, string-valued).
Field set (the actual values). number fields are written as floats
unless intFields/uintFields name them explicitly - see
PointInput.intFields/uintFields.
OptionalintNames (subset of fields' keys) that should be written as signed integers instead of floats.
OptionaluintNames (subset of fields' keys) that should be written as unsigned integers instead of floats.
OptionaltimestampPoint timestamp. undefined (default) lets the client stamp it with
the local clock; an explicit Date/number/string sets it; the
empty string '' omits it so the server assigns one on ingest.
Plain-object description of a point, for the
writeMeasurement/writeMeasurementsconvenience methods.