ERROR: UndefVarError: `plot_chains` not defined

I installed Turing and TuringGLM and then ran an example as detailed in the tutorial . However when I ran plot_chains(chns) , I ran into an issue.

ERROR: UndefVarError: `plot_chains` not defined
Stacktrace:
 [1] top-level scope
   @ REPL[24]:1

When i installed TuringGLM, I had a warning

julia> using TuringGLM
[ Info: Precompiling TuringGLM [0004c1f4-53c5-4d43-a221-a1dac6cf6b74]
┌ Warning: Module Turing with build ID fafbfcfd-f23d-ea23-0003-6021b31a125e is missing from the cache.
│ This may mean Turing [fce5fe82-541a-59a6-adf8-730c64b5f9a0] does not support precompilation but is imported by a module that does.
└ @ Base loading.jl:1793
[ Info: Skipping precompilation since __precompile__(false). Importing TuringGLM [0004c1f4-53c5-4d43-a221-a1dac6cf6b74].
[ Info: Precompiling TransducersLazyArraysExt [cdbecb60-77cf-500a-86c2-8d8bbf22df88]
┌ Warning: Module Transducers with build ID fafbfcfd-fa1e-c776-0003-60148ec190fc is missing from the cache.
│ This may mean Transducers [28d57a85-8fef-5791-bfe6-a80928e7c999] does not support precompilation but is imported by a module that does.
└ @ Base loading.jl:1793
[ Info: Skipping precompilation since __precompile__(false). Importing TransducersLazyArraysExt [cdbecb60-77cf-500a-86c2-8d8bbf22df88].

Are these two issues related? and if not how do I resolved the UndefVarError?