importFrom("ROI", "ROI_plugin_get_solver_name", "ROI_registered_solvers",
    "ROI_plugin_register_solver_control",  "ROI_plugin_register_solver_method", 
    "ROI_plugin_canonicalize_solution", "ROI_plugin_add_status_code_to_db",
    "ROI_plugin_solution_dual", "ROI_plugin_make_signature", "as.C_constraint",
    "constraints", "objective", "maximum", "bounds", "types")
importFrom("ECOSolveR", "ECOS_csolve", "ecos.control")
importFrom("slam", "simple_triplet_matrix")
importFrom("slam", "simple_triplet_zero_matrix")
importFrom("stats", "terms", "aggregate")
importFrom("methods", "getPackageName")
importFrom("methods", "getFunction")
importFrom("Matrix", "sparseMatrix")
S3method("ROI_plugin_solution_dual", "ecos_solution")