### ----------------------------------------------------
### -- FHIR
### -- Licenses: Artistic-2.0
### -- Authors: Hugh Simpson
### -- File: t/resources/structureDefinition/Bundle.json
### ----------------------------------------------------
### -- Chunk 6 of 8
=\"data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAwNdCABMPwMo2ctnoQAAAABJRU5ErkJggg==\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUOL+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"data: image/png;base64,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\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <span title=\"Bundle.signature : Digital Signature - base64 encoded. XML-DSig or a JWT.\">signature</span><a name=\"Bundle.signature\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"padding-left: 3px; padding-right: 3px; color: black; background-color: white\" href=\"elementdefinition-definitions.html#ElementDefinition.isSummary\" title=\"This element is included in summaries\">Σ</a><a style=\"padding-left: 3px; padding-right: 3px; border: 1px grey solid; font-weight: bold; color: black; background-color: #fff5e6\" href=\"versions.html#std-process\" title=\"Standards Status = Trial Use\">TU</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"datatypes.html#Signature\">Signature</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Digital Signature</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"formats.html#table\" title=\"Legend for this format\"><img src=\"help16.png\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-category",
    "valueString" : "Foundation.Other"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "normative"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
    "valueCode" : "4.0.0"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 5
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category",
    "valueCode" : "not-classified"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }],
  "url" : "http://hl7.org/fhir/StructureDefinition/Bundle",
  "version" : "4.0.0",
  "name" : "Bundle",
  "status" : "active",
  "date" : "2018-12-27T22:37:54+11:00",
  "publisher" : "Health Level Seven International (FHIR Infrastructure)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg/index.cfm"
    }]
  }],
  "description" : "A container for a collection of resources.",
  "fhirVersion" : "4.0.0",
  "mapping" : [{
    "identity" : "v2",
    "uri" : "http://hl7.org/v2",
    "name" : "HL7 v2 Mapping"
  },
  {
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  },
  {
    "identity" : "cda",
    "uri" : "http://hl7.org/v3/cda",
    "name" : "CDA (R2)"
  },
  {
    "identity" : "w5",
    "uri" : "http://hl7.org/fhir/fivews",
    "name" : "FiveWs Pattern Mapping"
  }],
  "kind" : "resource",
  "abstract" : false,
  "type" : "Bundle",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Resource",
  "derivation" : "specialization",
  "snapshot" : {
    "element" : [{
      "id" : "Bundle",
      "path" : "Bundle",
      "short" : "Contains a collection of resources",
      "definition" : "A container for a collection of resources.",
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "Bundle",
        "min" : 0,
        "max" : "*"
      },
      "constraint" : [{
        "key" : "bdl-7",
        "severity" : "error",
        "human" : "FullUrl must be unique in a bundle, or else entries with the same fullUrl must have different meta.versionId (except in history bundles)",
        "expression" : "(type = 'history') or entry.where(fullUrl.exists()).select(fullUrl&resource.meta.versionId).isDistinct()",
        "xpath" : "(f:type/@value = 'history') or (count(for $entry in f:entry[f:resource] return $entry[count(parent::f:Bundle/f:entry[f:fullUrl/@value=$entry/f:fullUrl/@value and ((not(f:resource/*/f:meta/f:versionId/@value) and not($entry/f:resource/*/f:meta/f:versionId/@value)) or f:resource/*/f:meta/f:versionId/@value=$entry/f:resource/*/f:meta/f:versionId/@value)])!=1])=0)"
      },
      {
        "key" : "bdl-9",
        "severity" : "error",
        "human" : "A document must have an identifier with a system and a value",
        "expression" : "type = 'document' implies (identifier.system.exists() and identifier.value.exists())",
        "xpath" : "not(f:type/@value = 'document') or exists(f:identifier/f:system) or exists(f:identifier/f:value)"
      },
      {
        "key" : "bdl-3",
        "severity" : "error",
        "human" : "entry.request mandatory for batch/transaction/history, otherwise prohibited",
        "expression" : "entry.all(request.exists() = (%resource.type = 'batch' or %resource.type = 'transaction' or %resource.type = 'history'))",
        "xpath" : "not(f:entry/f:request) or (f:type/@value = 'batch') or (f:type/@value = 'transaction') or (f:type/@value = 'history')"
      },
      {
        "key" : "bdl-4",
        "severity" : "error",
        "human" : "entry.response mandatory for batch-response/transaction-response/history, otherwise prohibited",
        "expression" : "entry.all(response.exists() = (%resource.type = 'batch-response' or %resource.type = 'transaction-response' or %resource.type = 'history'))",
        "xpath" : "not(f:entry/f:response) or (f:type/@value = 'batch-response') or (f:type/@value = 'transaction-response') or (f:type/@value = 'history')"
      },
      {
        "key" : "bdl-12",
        "severity" : "error",
        "human" : "A message must have a MessageHeader as the first resource",
        "expression" : "type = 'message' implies entry.first().resource.is(MessageHeader)",
        "xpath" : "not(f:type/@value='message') or f:entry[1]/f:resource/f:MessageHeader"
      },
      {
        "key" : "bdl-1",
        "severity" : "error",
        "human" : "total only when a search or history",
        "expression" : "total.empty() or (type = 'searchset') or (type = 'history')",
        "xpath" : "not(f:total) or (f:type/@value = 'searchset') or (f:type/@value = 'history')"
      },
      {
        "key" : "bdl-2",
        "severity" : "error",
        "human" : "entry.search only when a search",
        "expression" : "entry.search.empty() or (type = 'searchset')",
        "xpath" : "not(f:entry/f:search) or (f:type/@value = 'searchset')"
      },
      {
        "key" : "bdl-11",
        "severity" : "error",
        "human" : "A document must have a Composition as the first resource",
        "expression" : "type = 'document' implies entry.first().resource.is(Composition)",
        "xpath" : "not(f:type/@value='document') or f:entry[1]/f:resource/f:Composition"
      },
      {
        "key" : "bdl-10",
        "severity" : "error",
        "human" : "A document must have a date",
        "expression" : "type = 'document' implies (meta.lastUpdated.hasValue())",
        "xpath" : "not(f:type/@value = 'document') or exists(f:meta/f:lastUpdated/f:value)"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "Entity. Role, or Act"
      },
      {
        "identity" : "v2",
        "map" : "N/A"
      },
      {
        "identity" : "rim",
        "map" : "N/A"
      },
      {
        "identity" : "cda",
        "map" : "ClinicalDocument, if bundle.type = document"
      }]
    },
    {
      "id" : "Bundle.id",
      "path" : "Bundle.id",
      "short" : "Logical id of this artifact",
      "definition" : "The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.",
      "comment" : "The only time that a resource does not have an id is when it is being submitted to the server using a create operation.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.id",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "id"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.meta",
      "path" : "Bundle.meta",
      "short" : "Metadata about the resource",
      "definition" : "The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.meta",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "Meta"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.implicitRules",
      "path" : "Bundle.implicitRules",
      "short" : "A set of rules under which this content was created",
      "definition" : "A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.",
      "comment" : "Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.implicitRules",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "uri"
      }],
      "isModifier" : true,
      "isModifierReason" : "This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation",
      "isSummary" : true
    },
    {
      "id" : "Bundle.language",
      "path" : "Bundle.language",
      "short" : "Language of the resource content",
      "definition" : "The base language in which the resource is written.",
      "comment" : "Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.language",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet",
          "valueCanonical" : "http://hl7.org/fhir/ValueSet/all-languages"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "Language"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean" : true
        }],
        "strength" : "preferred",
        "description" : "A human language.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/languages"
      }
    },
    {
      "id" : "Bundle.identifier",
      "path" : "Bundle.identifier",
      "short" : "Persistent identifier for the bundle",
      "definition" : "A persistent identifier for the bundle that won't change as a bundle is copied from server to server.",
      "comment" : "Persistent identity generally only matters for batches of type Document, Message, and Collection. It would not normally be populated for search and history results and servers ignore Bundle.identifier when processing batches and transactions. For Documents  the .identifier SHALL be populated such that the .identifier is globally unique.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Bundle.identifier",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "Identifier"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.identifier"
      },
      {
        "identity" : "cda",
        "map" : "ClinicalDocument.id"
      }]
    },
    {
      "id" : "Bundle.type",
      "path" : "Bundle.type",
      "short" : "document | message | transaction | transaction-response | batch | batch-response | history | searchset | collection",
      "definition" : "Indicates the purpose of this bundle - how it is intended to be used.",
      "comment" : "It's possible to use a bundle for other purposes (e.g. a document can be accepted as a transaction). This is primarily defined so that there can be specific rules for some of the bundle types.",
      "min" : 1,
      "max" : "1",
      "base" : {
        "path" : "Bundle.type",
        "min" : 1,
        "max" : "1"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "BundleType"
        }],
        "strength" : "required",
        "description" : "Indicates the purpose of a bundle - how it is intended to be used.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/bundle-type|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.class"
      }]
    },
    {
      "id" : "Bundle.timestamp",
      "path" : "Bundle.timestamp",
      "short" : "When the bundle was assembled",
      "definition" : "The date/time that the bundle was assembled - i.e. when the resources were placed in the bundle.",
      "comment" : "For many bundles, the timestamp is equal to .meta.lastUpdated, because they are not stored (e.g. search results). When a bundle is placed in a persistent store, .meta.lastUpdated will be usually be changed by the server. When the bundle is a message, a middleware agent altering the message (even if not stored) SHOULD update .meta.lastUpdated. .timestamp is used to track the original time of the Bundle, and SHOULD be populated.  \n\nUsage:\n\n* document : the date the document was created. Note: the composition may predate the document, or be associated with multiple documents. The date of the composition - the authoring time - may be earlier than the document assembly time\n* message : the date that the content of the message was assembled. This date is not changed by middleware engines unless they add additional data that changes the meaning of the time of the message\n* history : the date that the history was assembled. This time would be used as the _since time to ask for subsequent updates\n* searchset : the time that the search set was assembled. Note that different pages MAY have different timestamps but need not. Having different timestamps does not imply that subsequent pages will represent or include changes made since the initial query\n* transaction | transaction-response | batch | batch-response | collection : no particular assigned meaning\n\nThe timestamp value should be greater than the lastUpdated and other timestamps in the resources in the bundle, and it should be equal or earlier than the .meta.lastUpdated on the Bundle itself.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Bundle.timestamp",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "instant"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.init"
      },
      {
        "identity" : "cda",
        "map" : "ClinicalDocument.effectiveTime"
      }]
    },
    {
      "id" : "Bundle.total",
      "path" : "Bundle.total",
      "short" : "If search, the total number of matches",
      "definition" : "If a set of search matches, this is the total number of entries of type 'match' across all pages in the search.  It does not include search.mode = 'include' or 'outcome' entries and it does not provide a count of the number of entries in the Bundle.",
      "comment" : "Only used if the bundle is a search result set. The total does not include resources such as OperationOutcome and included resources, only the total number of matching resources.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Bundle.total",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "unsignedInt"
      }],
      "condition" : ["bdl-1"],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.link",
      "path" : "Bundle.link",
      "short" : "Links related to this Bundle",
      "definition" : "A series of links that provide context to this bundle.",
      "comment" : "Both Bundle.link and Bundle.entry.link are defined to support providing additional context when Bundles are used (e.g. [HATEOAS](http://en.wikipedia.org/wiki/HATEOAS)). \n\nBundle.entry.link corresponds to links found in the HTTP header if the resource in the entry was [read](http.html#read) directly.\n\nThis specification defines some specific uses of Bundle.link for [searching](search.html#conformance) and [paging](http.html#paging), but no specific uses for Bundle.entry.link, and no defined function in a transaction - the meaning is implementation specific.",
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "Bundle.link",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "BackboneElement"
      }],
      "constraint" : [{
        "key" : "ele-1",
        "severity" : "error",
        "human" : "All FHIR elements must have a @value or children",
        "expression" : "hasValue() or (children().count() > id.count())",
        "xpath" : "@value|f:*|h:div",
        "source" : "Element"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.link.id",
      "path" : "Bundle.link.id",
      "representation" : ["xmlAttr"],
      "short" : "Unique id for inter-element referencing",
      "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Element.id",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "string"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "n/a"
      }]
    },
    {
      "id" : "Bundle.link.extension",
      "path" : "Bundle.link.extension",
      "short" : "Additional content defined by implementations",
      "definition" : "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "comment" : "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "alias" : ["extensions",
      "user content"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "Element.extension",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Extension"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "n/a"
      }]
    },
    {
      "id" : "Bundle.link.modifierExtension",
      "path" : "Bundle.link.modifierExtension",
      "short" : "Extensions that cannot be ignored even if unrecognized",
      "definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "comment" : "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "alias" : ["extensions",
      "user content",
      "modifiers"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "BackboneElement.modifierExtension",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Extension"
      }],
      "isModifier" : true,
      "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary" : true,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A"
      }]
    },
    {
      "id" : "Bundle.link.relation",
      "path" : "Bundle.link.relation",
      "short" : "See http://www.iana.org/assignments/link-relations/link-relations.xhtml#link-relations-1",
      "definition" : "A name which details the functional use for this link - see [http://www.iana.org/assignments/link-relations/link-relations.xhtml#link-relations-1](http://www.iana.org/assignments/link-relations/link-relations.xhtml#link-relations-1).",
      "min" : 1,
      "max" : "1",
      "base" : {
        "path" : "Bundle.link.relation",
        "min" : 1,
        "max" : "1"
      },
      "type" : [{
        "code" : "string"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.link.url",
      "path" : "Bundle.link.url",
      "short" : "Reference details for the link",
      "definition" : "The reference details for the link.",
      "min" : 1,
      "max" : "1",
      "base" : {
        "path" : "Bundle.link.url",
        "min" : 1,
        "max" : "1"
      },
      "type" : [{
        "code" : "uri"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.entry",
      "path" : "Bundle.entry",
      "short" : "Entry in the bundle - will have a resource or information",
      "definition" : "An entry in a bundle resource - will either contain a resource or information about a resource (transactions and history only).",
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "Bundle.entry",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "BackboneElement"
      }],
      "orderMeaning" : "For bundles of type 'document' and 'message', the first resource is special (must be Composition or MessageHeader respectively). For all bundles, the meaning of the order of entries depends on the bundle type",
      "constraint" : [{
        "key" : "ele-1",
        "severity" : "error",
        "human" : "All FHIR elements must have a @value or children",
        "expression" : "hasValue() or (children().count() > id.count())",
        "xpath" : "@value|f:*|h:div",
        "source" : "Element"
      },
      {
        "key" : "bdl-8",
        "severity" : "error",
        "human" : "fullUrl cannot be a version specific reference",
        "expression" : "fullUrl.contains('/_history/').not()",
        "xpath" : "not(exists(f:fullUrl[contains(string(@value), '/_history/')]))"
      },
      {
        "key" : "bdl-5",
        "severity" : "error",
        "human" : "must be a resource unless there's a request or response",
        "expression" : "resource.exists() or request.exists() or response.exists()",
        "xpath" : "exists(f:resource) or exists(f:request) or exists(f:response)"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "Bundle.entry.id",
      "path" : "Bundle.entry.id",
      "representation" : ["xmlAttr"],
      "short" : "Unique id for inter-element referencing",
      "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Element.id",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "string"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "n/a"
      }]
    },
    {
      "id" : "Bundle.entry.extension",
      "path" : "Bundle.entry.extension",
      "short" : "Additional content defined by implementations",
      "definition" : "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "comment" : "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
     