How to prepare record type in variable?

Hello Everyone,

I am working with record type.

There is a requirement to prepare record type using rule input.

This is the logic I am using:

a!forEach(
  items: ri!reminderInfo,
  expression:fv!item['recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{5515212e-0535-40f5-aa3e-1d92c83c23ca}appointmentId': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{274539be-ac91-4f4c-95ed-69bd50175dae}appointmentId',null),
  'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{e7f92751-d0c8-4ce6-a252-2bd4b3bee143}createdBy': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{9cc0bbe6-dc99-4b3c-bf8b-e70e36fbbbb0}createdBy',null),
  'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{82394d77-2331-4196-9d8e-3aaaf57888a3}createdOn': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{19a1f573-e088-4dd7-bc12-285695cf99c0}createdOn',null),
  'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{9239e959-1781-4c7f-9b71-83d00def8913}isActive': true()]
)

a!forEach(
items: ri!reminderInfo,
expression:fv!item['recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{5515212e-0535-40f5-aa3e-1d92c83c23ca}appointmentId': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{274539be-ac91-4f4c-95ed-69bd50175dae}appointmentId',null),
'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{e7f92751-d0c8-4ce6-a252-2bd4b3bee143}createdBy': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{9cc0bbe6-dc99-4b3c-bf8b-e70e36fbbbb0}createdBy',null),
'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{82394d77-2331-4196-9d8e-3aaaf57888a3}createdOn': index(ri!appointmentInfo,'recordType!{5746f330-8c31-4ea7-9807-cbbd2fd557eb}AMS_DG Appointment.fields.{19a1f573-e088-4dd7-bc12-285695cf99c0}createdOn',null),
'recordType!{e5a6a458-a1b1-4679-91c9-944cecdfdac6}AMS_DG Appointment Reminder.fields.{9239e959-1781-4c7f-9b71-83d00def8913}isActive': true()]
)

This is the error pops up: Expression evaluation error in rule 'ams_dg_preparereminderrecord' at function a!forEach: Error in a!forEach() expression during iteration 1: Expression evaluation error: AMS_DG Appointment Reminder must be indexed by its corresponding record type fields or relationships) (Data Outputs).

Please help me with this