TransmissionInterface direction type should be Float instead of Int

[mvivienneliu]

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I have a problem with PSY TransmissionInterface, the get_direction_mapping would return a Dict(String,Int64)
PSY.get_direction_mapping
get_direction_mapping(
value::TransmissionInterface
) -> Dict{String, Int64}
But in PSI, when we try to _add_to_jump_expression!, the multiplier has to be a Float64 (which is direction here) so it always return an error.
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┌ Error: Simulation build failed
│ exception =
│ MethodError: no method matching _add_to_jump_expression!(::AffExpr, ::VariableRef, ::Int64)
│
│ Closest candidates are:
│ _add_to_jump_expression!(::T, ::VariableRef, ::Float64, ::Float64) where T<:AbstractJuMPScalar
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/devices_models/devices/common/add_to_expression.jl:110
│ _add_to_jump_expression!(::T, ::VariableRef, ::Float64) where T<:AbstractJuMPScalar
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/devices_models/devices/common/add_to_expression.jl:93
│ _add_to_jump_expression!(::T, ::Float64, ::Float64) where T<:AbstractJuMPScalar
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/devices_models/devices/common/add_to_expression.jl:121
│ ...
│
│ Stacktrace:
│ [1] add_to_expression!(container::PowerSimulations.OptimizationContainer, ::Type{PowerSimulations.InterfaceTotalFlow}, ::Type{FlowActivePowerVariable}, service::TransmissionInterface, model::ServiceModel{TransmissionInterface, ConstantMaxInterfaceFlow})
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/devices_models/devices/common/add_to_expression.jl:1301
│ [2] construct_service!(container::PowerSimulations.OptimizationContainer, sys::System, ::InfrastructureSystems.Optimization.ModelConstructStage, model::ServiceModel{TransmissionInterface, ConstantMaxInterfaceFlow}, devices_template::Dict{Symbol, DeviceModel}, incompatible_device_types::Set{DataType}, network_model::NetworkModel{PTDFPowerModel})
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/services_models/services_constructor.jl:569
│ [3] construct_services!(container::PowerSimulations.OptimizationContainer, sys::System, stage::InfrastructureSystems.Optimization.ModelConstructStage, services_template::Dict{Tuple{String, Symbol}, ServiceModel}, devices_template::Dict{Symbol, DeviceModel}, network_model::NetworkModel{PTDFPowerModel})
│ @ PowerSimulations ~/.julia/packages/PowerSimulations/2yc8E/src/services_models/services_constructor.jl:74
│ [4] macro expansion
│ @ ~/.julia/packages/PowerSimulations/2yc8E/src/core/optimization_container.jl:739 [inlined]

[jd-lara]

closed via #1205