ForgeTypeId and GetDataType

[MrBrangoBIM]

Hello forum members.

I have a problem, don't understand ForgeTypeId and GetDataType.
Don't know why I find this complicated, but need your help.
Have read the Revit API but don't understand, maybe I'm making it more difficult than it needs to be.
Are there different approaches depending on whether it is a built-in parameter, shared parameter, categories or elements.
Could someone share a code that works so I can look and compare.

Thanks in advance!

I've tried with everthing I try ends up as an error:
TypeError: expected ForgeTypeId, got BuiltInParameter

def find_parameter(element):
   for parameter in element.Parameters:
        if parameter.Definition.GetDataType() == SpecTypeId.String.Text:
            return parameter

wallId = ElementId(606536)
wall = doc.GetElement(wallId)

#inter = InternalDefinition
# forge = ForgeTypeId().TypeId
# Forge = inter

wall_comments = wall.GetParameter(BuiltInParameter.ALL_MODEL_INSTANCE_COMMENTS).Definition.GetDataType() == SpecTypeId.String.Text
print('____________Parameters_____________')
print(wall_comments)



#for p in wall.Parameters:
# print('.Name:               {}'.format(wall_comments.Definition.Name))
# print('.StorageType:        {}'.format(wall_comments.StorageType))
# print('.BuiltInParameter:   {}'.format(wall_comments.Definition.BuiltInParameter))

[jeremy_tammik]

It remains unclear to me what you are trying to achieve and what your code has to do with your question.

[mhannonQ65N2]

The GetParameter method only takes a ForgeTypeId. The get_Parameter method, however, takes a BuiltInParameter, a Definition, or a GUID.