[
 {
  "owner": "Administrator", 
  "docstatus": 0, 
  "creation": "2012-05-01 12:46:31", 
  "modified_by": "Administrator", 
  "modified": "2012-05-01 09:16:31"
 }, 
 {
  "doc_type": "Journal Voucher", 
  "name": "__common__", 
  "doctype": "GL Mapper"
 }, 
 {
  "name": "__common__", 
  "parent": "Journal Voucher", 
  "doctype": "GL Mapper Detail", 
  "parenttype": "GL Mapper", 
  "parentfield": "fields"
 }, 
 {
  "name": "Journal Voucher", 
  "doctype": "GL Mapper"
 }, 
 {
  "account": "account", 
  "doctype": "GL Mapper Detail", 
  "credit": "credit", 
  "against_voucher_type": "value:(d.against_voucher and 'Purchase Invoice') or (d.against_invoice and 'Sales Invoice') or (d.against_jv and 'Journal Voucher') or ''", 
  "company": "parent:company", 
  "debit": "debit", 
  "fiscal_year": "parent:fiscal_year", 
  "against": "against_account", 
  "voucher_type": "parent:doctype", 
  "against_voucher": "value:d.against_voucher or d.against_invoice or d.against_jv or ''", 
  "table_field": "entries", 
  "transaction_date": "parent:voucher_date", 
  "is_advance": "is_advance", 
  "aging_date": "parent:aging_date", 
  "is_opening": "parent:is_opening", 
  "remarks": "parent:remark", 
  "posting_date": "parent:posting_date", 
  "voucher_no": "parent:name", 
  "cost_center": "cost_center"
 }, 
 {
  "account": "tax_code", 
  "doctype": "GL Mapper Detail", 
  "company": "company", 
  "debit": "value:0", 
  "fiscal_year": "fiscal_year", 
  "against": "supplier_account", 
  "voucher_type": "doctype", 
  "credit": "ded_amount", 
  "transaction_date": "voucher_date", 
  "aging_date": "aging_date", 
  "is_opening": "is_opening", 
  "remarks": "remark", 
  "posting_date": "posting_date", 
  "voucher_no": "name"
 }
]