# Documentation on types of Connections in ModelingToolkit.jl

**URL:** <https://discourse.julialang.org/t/documentation-on-types-of-connections-in-modelingtoolkit-jl/106357>\
**Category:** New to Julia\
**Tags:** modelingtoolkit\
**Created:** [November 17, 2023, 1:22pm UTC](https://discourse.julialang.org/t/documentation-on-types-of-connections-in-modelingtoolkit-jl/106357 "2023-11-17T13:22:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sushrut\_Deshpande](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sushrut_deshpande/32/52754_2.png) [@Sushrut\_Deshpande](https://discourse.julialang.org/u/Sushrut_Deshpande)\
**Post date:** [November 17, 2023, 1:22pm UTC](https://discourse.julialang.org/t/documentation-on-types-of-connections-in-modelingtoolkit-jl/106357/1 "2023-11-17T13:22:06Z")

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Thank you for making ModelingToolkit.

My question concerns with the documentation of building the Component Library for Acasual modeling. In the example given in the documentation (RC - Circuit) `[connect = Flow]` is used to ensure the sum of currents is zero.

I want to know what other options of connections are available. As far as I know the other one is `Stream` but I am not sure of its exact implementation and purpose as I was not able to find adequate documentation.

Do let me know if I am missing some particular links/documentation.

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**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [November 17, 2023, 2:10pm UTC](https://discourse.julialang.org/t/documentation-on-types-of-connections-in-modelingtoolkit-jl/106357/2 "2023-11-17T14:10:03Z")

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Right now it’s missing and we need to write more docs around it.