doc(graphql): add documentation for a function
doc(graphql): add documentation for a function

nbushak/postgraphql,calebmer/postgraphql,calebmer/postgraphql,postgraphql/postgraphql,nbushak/postgraphql,nbushak/postgraphql,postgraphql/postgraphql,nbushak/postgraphql,calebmer/postgraphql,calebmer/postgraphql,postgraphql/postgraphql,postgraphql/postgraphql