NewProvider returns a new `Provider` instance configured by 'uri'.

RegisterProvider registers 'scheme' as a key pointing to 'init_func' in an internal lookup table used to create new `Provider` instances by the `NewProvider` method.

Schemes returns the list of schemes that have been registered.

The names of the commandline flag or query parameter used to assign the `javascript_at_eof` variable.

The name of the commandline flag or query parameter used to assign the `leaflet_enable_draw` variable.

The name of the commandline flag or query parameter used to assign the `leaflet_enable_fullscreen` variable.

The name of the commandline flag or query parameter used to assign the `leaflet_enable_hash` variable.

The name of the commandline flag or query parameter used to assign the `leaflet_tile_url` variable.

The name of the commandline flag or query parameter used to assign the `map_provider` variable.

The name of the commandline flag or query parameter used to assign the `protomaps_bucket_uri` variable.

The name of the commandline flag or query parameter used to assign the `protomaps_cache_size` variable.

The name of the commandline flag or query parameter used to assign the `protomaps_database` variable.

The names of the commandline flag or query parameter used to assign the `protomaps_paint_rules_uri` variable.

The names of the commandline flag or query parameter used to assign the `protomaps_paint_rules_uri` variable.

The name of the commandline flag or query parameter used to assign the `protomaps_serve_tiles` variable.

The name of the commandline flag or query parameter used to assign the `protomaps_tile_url` variable.

The names of the commandline flag or query parameter used to assign the `rollup_assets` variable.

ProviderInitializationFunc is a function defined by individual provider package and used to create an instance of that provider.