Creates a pxweb query object from either a list with named values, a json query file or json query string. See examples below.
Usage
pxweb_query(x)
# S3 method for character
pxweb_query(x)
# S3 method for json
pxweb_query(x)
# S3 method for pxweb_query
pxweb_query(x)
# S3 method for list
pxweb_query(x)
# S3 method for response
pxweb_query(x)
# S3 method for pxweb_explorer
pxweb_query(x)