Which Python API can be used to retrieve ALL underwriters of a bond

I am looking for a method to retrieve all underwriters of a specific bond using a python API.

Within the Refinitiv Workspace, you can open a bond and retrieve a set of multiple underwriters, as exampel

Following the article Debt Structure Analysis on an Organizational Level, I constructed the following Python code:

import refinitiv.data as rd
from refinitiv.data.content import search

# opens session with refinitiv-data.config.json
rd.open_session()

organization = "4295885383"  # YARA International ASA

# Fields
fields = [
    # basic bond data
    "PermID",
    "ISIN",
    "IssueDate",
    "Currency",
    "FaceIssuedTotal",

    # underwriter fields
    "UnderwriterCode",
    "UnderwriterID",
    "UnderwriterName",
    "UnderwriterSetupDate",
    "UnderwriterAmount",
]

df = search.Definition(
    view=search.Views.GOV_CORP_INSTRUMENTS,
    filter=f"ParentOAPermID eq '{organization}' and IsActive eq true",
    select=",".join(fields),
).get_data()

data = df.data.df
print(data)

The result is per obligation the underwriter, as such:

However, you can see that for obligation permID NO0010727993, there is only 1 underwriter, but in the Workspace you see 3 underwriters.

Another way to search for this field is using the data Item Browser. Searching for the permID you see the fields can be called: "TR.Underwriter", "TR.UnderwriterCode", "TR.UnderwriterRankDescription", "TR.UnderwriterAmount", "TR.FIUseOfProceedsAmount".

However, these fields are not known in the search engine. I retrieve the error: "Error code 221 | The access to field(s) denied".

Alternative, I can use the followings calls: "fundamental_and_reference.Definition", "rd.get_history" and "rd.get_data". They all give errors and no data.

As such, My question is:

What Python API should I use, and how do I set this up, to retrieve ALL underwriters of a obligation.