Function tideOrCurrent

tideOrCurrent(json?): void
Select a tide or current station based on the location and station type.

The station of the given type which is nearest the geographic location specified will be selected.
Parameters
- json: {
      location: {
          lat: number;
          lng: number;
      };
      type: string;
  } = ...
  - location: {
    lat: number;
    lng: number;
    }
    - lat: number
    - lng: number
  - type: string
    string "tide | current"
Returns void
Example
```
// Show currents for Yokeko Point
{
 "location": {
   "lat": 48.41272,
   "lng": -122.61317
 },
 "type": "current"
}
```