openweather_series_observations: Get observations of a Open Weather Map Series
In alexhallam/OpenWeatherPull:

Given the City ID, return observations of the series as a 'tibble' object. 'openweather' is an alieas for 'openweather_series_observations()'.

openweather_series_observations(id = NULL, type = NULL, cnt = NULL,
  units = NULL, aggregation_method = NULL, limit = NULL,
  sort_order = NULL, realtime_start = NULL, realtime_end = NULL)

openweather(id = NULL, type = NULL, cnt = NULL, units = NULL,
  aggregation_method = NULL, limit = NULL, sort_order = NULL,
  realtime_start = NULL, realtime_end = NULL)

`id`	A string ID for the Open Weather series. _Required parameter_.
`type`	A string ID for the type of weather data to pull. _Required parameter_. * '"today"' for current days weather * '"forecast"' for the 14 day forecast * '"forecast3h"' forcast at 3 hour intervales.
`units`	* '"i"' Imperial: Fahrenheit for temperature and miles/hour for wind speed * '"k"' Default: Kelvin for temp and meter/sec for wind speed _Default_ * '"m"' Metric: Celsius for temp and meter/sec for wind speed
`aggregation_method`	A string representing the aggregation method used for frequency aggregation. This parameter has no affect is 'frequency' is not set. Possible values are: * '"avg"' for average * '"sum"' for sum * '"eop"' for end of period value
`limit`	An integer limit on the maximum number of results to return. Defaults to '100000', the maximum.
`sort_order`	A string representing the order of the resulting series. Possible values are: '"asc"' (default), and '"desc"'.
`realtime_start`	A 'Date' indicating the start of the real-time period. Defaults to today's date.
`realtime_end`	A 'Date' indicating the end of the real-time period. Defaults to today's date.