Fix LOT_ID error

@@ -49,9 +49,9 @@ Library  openprocurement_client_helper.py
 
 
 Отримати посилання на аукціон для глядача
-  [Arguments]  ${username}  ${tender_uaid}  ${lot_id}=${Empty}
+  [Arguments]  ${username}  ${tender_uaid}  ${lot_id}=${None}
   ${tender}=  openprocurement_client.Пошук тендера по ідентифікатору  ${username}  ${tender_uaid}
-  ${auctionUrl}=  Run Keyword IF  '${lot_id}'  Set Variable  ${tender.data.lots[${lot_index}].auctionUrl}
+  ${auctionUrl}=  Run Keyword IF  ${lot_id}  Set Variable  ${tender.data.lots[${lot_index}].auctionUrl}
   ...                         ELSE  Set Variable  ${tender.data.auctionUrl}
   [return]  ${auctionUrl}
 
@@ -435,9 +435,9 @@ Library  openprocurement_client_helper.py
 
 
 Отримати посилання на аукціон для учасника
-  [Arguments]  ${username}  ${tender_uaid}  ${lot_id}=${Empty}
+  [Arguments]  ${username}  ${tender_uaid}  ${lot_id}=${None}
   ${bid}=  openprocurement_client.Отримати пропозицію  ${username}  ${tender_uaid}
-  ${participationUrl}=  Run Keyword IF  '${lot_id}'  Set Variable  ${bid.data.lotValues[${lot_index}].participationUrl}
+  ${participationUrl}=  Run Keyword IF  ${lot_id}  Set Variable  ${bid.data.lotValues[${lot_index}].participationUrl}
   ...                         ELSE  Set Variable  ${bid.data.participationUrl}
   [return]  ${participationUrl}
 
@@ -450,11 +450,11 @@ Library  openprocurement_client_helper.py
   ...      [Arguments] Username, tender uaid, qualification number and document to upload
   ...      [Description] Find tender using uaid,  and call upload_qualification_document
   ...      [Return] Reply of API
-  [Arguments]  ${username}  ${document}  ${tender_uaid}  ${award_num}  ${lot_id}=${Empty}
+  [Arguments]  ${username}  ${document}  ${tender_uaid}  ${award_num}  ${lot_id}=${None}
   ${tender}=  openprocurement_client.Пошук тендера по ідентифікатору  ${username}  ${tender_uaid}
   ${doc}=  Call Method  ${USERS.users['${username}'].client}  upload_award_document  ${document}  ${tender}  ${tender.data.awards[${award_num}].id}
-  ${lot_index}=  Run Keyword If  '${lot_id}'  get_object_index_by_id  ${tender.data.lots}  ${lot_id}
-  Run Keyword If  '${lot_id}'
+  ${lot_index}=  Run Keyword If  ${lot_id}  get_object_index_by_id  ${tender.data.lots}  ${lot_id}
+  Run Keyword If  ${lot_id}
   ...      Set To Object  ${doc.data}  documentOf  lot
   ...      Set To Object  ${doc.data}  relatedItem  ${tender.data.lots[${lot_index}].id}
   ...      Call Method  ${USERS.users['${username}'].client}  patch_document   ${tender}   ${doc}

@@ -180,7 +180,7 @@ Get Broker Property By Username
   ${file_path}=  Get Variable Value  ${ARTIFACT_FILE}  artifact.yaml
   ${ARTIFACT}=  load_data_from  ${file_path}
   Run Keyword And Ignore Error  Set To Dictionary  ${USERS.users['${tender_owner}']}  access_token=${ARTIFACT.access_token}
-  ${TENDER}=  Create Dictionary   TENDER_UAID=${ARTIFACT.tender_uaid}   LAST_MODIFICATION_DATE=${ARTIFACT.last_modification_date}   LOT_ID=${Empty}
+  ${TENDER}=  Create Dictionary   TENDER_UAID=${ARTIFACT.tender_uaid}   LAST_MODIFICATION_DATE=${ARTIFACT.last_modification_date}   LOT_ID=${None}
   ${lot_index}=  Get Variable Value  ${lot_index}  0
   Run Keyword And Ignore Error  Set To Dictionary  ${TENDER}  LOT_ID=${ARTIFACT.lots[${lot_index}]}
   ${mode}=  Get Variable Value  ${mode}  ${ARTIFACT.mode}
@@ -481,7 +481,7 @@ Get Broker Property By Username
 Отримати шлях до поля об’єкта
   [Arguments]  ${username}  ${field_name}  ${object_id}
   ${object_type}=  get_object_type_by_id  ${object_id}
-  ${objects}=  Get Variable Value  ${USERS.users['${username}'].tender_data.data['${object_type}']}  ${empty}
+  ${objects}=  Get Variable Value  ${USERS.users['${username}'].tender_data.data['${object_type}']}  ${None}
   ${object_index}=  get_object_index_by_id  ${objects}  ${object_id}
   [return]  ${object_type}[${object_index}].${field_name}