parse json into dicts instead of objects

Author: skylerreid

test/en_pf_native_validation.jl

@@ -392,7 +392,7 @@ solution_dir = "data/opendss_solutions"
     end
 
     sol_pmd = transform_solution(res["solution"], data_math, make_si=true)
-
+t 
     v_maxerr_pu = compare_sol_dss_pmd(sol_dss, sol_pmd["nw"]["10"], eng_ts["nw"]["10"], data_math["nw"]["10"], verbose=false, compare_math=true)
     @test v_maxerr_pu <= 1E-1   # This tolerance is selected for the multinetwork to pass, must be tightened later. The problem may be with OpenDSS json result.
 
@@ -419,7 +419,7 @@ filter!(e -> e ≠ "case3_unbalanced_delta_loads", cases)
 
             # obtain solution from dss
             sol_dss = open("$solution_dir/$case.json", "r") do f
-                JSON.parse(f)
+                Dict{String, Any}(JSON.parse(f))
             end
 
             sol_pmd = transform_solution(res["solution"], data_math, make_si=true)