BulkIndexerFromFlagSet returns a esutil.BulkIndexer instance derived from the values in 'fs'.

NewBulkIndexerFlagSet creates a new `flag.FlagSet` instance with command-line flags required by the `es-whosonfirst-index` tool.

PrepareFuncsFromFlagSet returns a list of zero or more known `document.PrepareDocumentFunc` functions based on the values in 'fs'.

RunBulkIndexer will "bulk" index a set of Who's On First documents with configuration details defined in 'opts'.

RunBulkIndexerOptionsFromFlagSet returns a `RunBulkIndexerOptions` instance derived from the values in 'fs'.

RunBulkIndexerWithFlagSet will "bulk" index a set of Who's On First documents with configuration details defined in 'fs'.

RunBulkIndexerWithFlagSet will "bulk" index a set of Who's On First documents with configuration details defined by `fs`.

type RunBulkIndexerOptions contains runtime configurations for bulk indexing.