query_str: Initialize a query with a specified query string
In WorldHealthOrganization/finderquery: Utilities for Building EIOS Finder Queries

Initialize a query with a specified query string

1	query_str(con, str, path = NULL, format = c("list", "xml", "file"))

`con`	A finder connection object from `finder_connect()`.
`str`	A SOLR query string, e.g. "op=search&q=:&rows=0".
`path`	An optional directory in which to place downloaded results (required when `format="file"`).
`format`	One of "list", "xml", "file". In the case of "file", The path to the file will be returned. In all other cases, an object with the fetched data will be returned in the format specified. List results are converted using `xml_to_list()`.