Pass name of function to a function - NOT as text

Greetings, 

I am working on a PQ function to pull back the metadata for a chosen function (user generated, or #shared).  I am aware I can just as easily click in the box that says Function after running the #shared query, though, the client does not want to do that. 

If I hard code the value without quotes, the function works properly, however if I try to pass the value from a function, the pq engine treats the value as text. I tried having the parameter value as: text, any, record, and table, none worked. I have a feeling there is a solution, however, I am stumped at this point. I do appreciate any and all assistance, thank you.

Code that works: 

(FunctionName as text) =>
// ^^ * I also tried as any, still evaluates as text, as table and as record did as well.

let
    
    Source = Value.Metadata(Value.Type(MyFunctionName)), // << - Hard Coded here, this works fine

    ConvertToTable = Record.ToTable(Source),

    PivotName = Table.Pivot(ConvertToTable, List.Distinct(ConvertToTable[Name]), "Name", "Value"),

    ExpandExamplesToRecord = Table.ExpandListColumn(PivotName, "Documentation.Examples"),
    
    ExpandExamplesToText = Table.ExpandRecordColumn(ExpandExamplesToRecord, "Documentation.Examples", {"Description", "Code", "Result"}, {"Documentation.Examples.Description", "Documentation.Examples.Code", "Documentation.Examples.Result"})

in 
    ExpandExamplesToText

 
Code that doesn't work

(FunctionName as text) =>
// ^^ as above, I did try other types to no avail


let
    
    Source = Value.Metadata(Value.Type(FunctionName)), // Passing the value from the parameter, encapsulates in "", so MyFunctionName evaluates as "MyFunctionName", which does not. 

    ConvertToTable = Record.ToTable(Source),

    PivotName = Table.Pivot(ConvertToTable, List.Distinct(ConvertToTable[Name]), "Name", "Value"),

    ExpandExamplesToRecord = Table.ExpandListColumn(PivotName, "Documentation.Examples"),
    
    ExpandExamplesToText = Table.ExpandRecordColumn(ExpandExamplesToRecord, "Documentation.Examples", {"Description", "Code", "Result"}, {"Documentation.Examples.Description", "Documentation.Examples.Code", "Documentation.Examples.Result"})

in 
    ExpandExamplesToText

 
Thank you. 

Also, a shout out to ImkeF  and @bengribaudo, whose code got me this far.