diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/_dataframe.py b/packages/google-cloud-monitoring/google/cloud/monitoring/_dataframe.py
index bdd1f90f46f2..5c0d89bb6ddb 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/_dataframe.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/_dataframe.py
@@ -34,7 +34,7 @@ def _build_dataframe(time_series_iterable,
     :param time_series_iterable:
         An iterable (e.g., a query object) yielding time series.
 
-    :type label: string or None
+    :type label: str or None
     :param label:
         The label name to use for the dataframe header. This can be the name
         of a resource label or metric label (e.g., ``"instance_name"``), or
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring/client.py
index 5aefce1972d1..1d986fa26e89 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/client.py
@@ -50,7 +50,7 @@
 class Client(JSONClient):
     """Client to bundle configuration needed for API requests.
 
-    :type project: string
+    :type project: str
     :param project: The target project. If not passed, falls back to the
                     default inferred from the environment.
 
@@ -80,7 +80,7 @@ def query(self,
             >>> query = client.query(minutes=5)
             >>> print(query.as_dataframe())  # Requires pandas.
 
-        :type metric_type: string
+        :type metric_type: str
         :param metric_type: The metric type name. The default value is
             :data:`Query.DEFAULT_METRIC_TYPE
             <google.cloud.monitoring.query.Query.DEFAULT_METRIC_TYPE>`,
@@ -158,19 +158,19 @@ def metric_descriptor(self, type_,
             ...     description='Cumulative count of HTTP responses.')
             >>> descriptor.create()
 
-        :type type_: string
+        :type type_: str
         :param type_:
             The metric type including a DNS name prefix. For example:
             ``"custom.googleapis.com/my_metric"``
 
-        :type metric_kind: string
+        :type metric_kind: str
         :param metric_kind:
             The kind of measurement. It must be one of
             :data:`MetricKind.GAUGE`, :data:`MetricKind.DELTA`,
             or :data:`MetricKind.CUMULATIVE`.
             See :class:`~google.cloud.monitoring.metric.MetricKind`.
 
-        :type value_type: string
+        :type value_type: str
         :param value_type:
             The value type of the metric. It must be one of
             :data:`ValueType.BOOL`, :data:`ValueType.INT64`,
@@ -184,13 +184,13 @@ def metric_descriptor(self, type_,
             A sequence of zero or more label descriptors specifying the labels
             used to identify a specific instance of this metric.
 
-        :type unit: string
+        :type unit: str
         :param unit: An optional unit in which the metric value is reported.
 
-        :type description: string
+        :type description: str
         :param description: An optional detailed description of the metric.
 
-        :type display_name: string
+        :type display_name: str
         :param display_name: An optional concise name for the metric.
 
         :rtype: :class:`MetricDescriptor`
@@ -221,7 +221,7 @@ def metric(type_, labels):
              ...                            'status': 'successful',
              ...                         })
 
-        :type type_: string
+        :type type_: str
         :param type_: The metric type name.
 
         :type labels: dict
@@ -248,7 +248,7 @@ def resource(type_, labels):
 
         https://cloud.google.com/monitoring/api/resources
 
-        :type type_: string
+        :type type_: str
         :param type_: The monitored resource type name.
 
         :type labels: dict
@@ -339,7 +339,7 @@ def fetch_metric_descriptor(self, metric_type):
             >>> METRIC = 'compute.googleapis.com/instance/cpu/utilization'
             >>> print(client.fetch_metric_descriptor(METRIC))
 
-        :type metric_type: string
+        :type metric_type: str
         :param metric_type: The metric type name.
 
         :rtype: :class:`~google.cloud.monitoring.metric.MetricDescriptor`
@@ -362,12 +362,12 @@ def list_metric_descriptors(self, filter_string=None, type_prefix=None):
             ...         type_prefix='custom.'):
             ...     print(descriptor.type)
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             An optional filter expression describing the metric descriptors
             to be returned. See the `filter documentation`_.
 
-        :type type_prefix: string or None
+        :type type_prefix: str or None
         :param type_prefix: An optional prefix constraining the selected
             metric types. This adds ``metric.type = starts_with("<prefix>")``
             to the filter.
@@ -389,7 +389,7 @@ def fetch_resource_descriptor(self, resource_type):
 
             >>> print(client.fetch_resource_descriptor('gce_instance'))
 
-        :type resource_type: string
+        :type resource_type: str
         :param resource_type: The resource type name.
 
         :rtype: :class:`~google.cloud.monitoring.resource.ResourceDescriptor`
@@ -408,7 +408,7 @@ def list_resource_descriptors(self, filter_string=None):
             >>> for descriptor in client.list_resource_descriptors():
             ...     print(descriptor.type)
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             An optional filter expression describing the resource descriptors
             to be returned. See the `filter documentation`_.
@@ -430,24 +430,24 @@ def group(self, group_id=None, display_name=None, parent_id=None,
           This will not make an HTTP request; it simply instantiates
           a group object owned by this client.
 
-        :type group_id: string or None
+        :type group_id: str or None
         :param group_id: The ID of the group.
 
-        :type display_name: string or None
+        :type display_name: str or None
         :param display_name:
             A user-assigned name for this group, used only for display
             purposes.
 
-        :type parent_id: string or None
+        :type parent_id: str or None
         :param parent_id:
             The ID of the group's parent, if it has one.
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             The filter string used to determine which monitored resources
             belong to this group.
 
-        :type is_cluster: boolean
+        :type is_cluster: bool
         :param is_cluster:
             If true, the members of this group are considered to be a cluster.
             The system can perform additional analysis on groups that are
@@ -478,7 +478,7 @@ def fetch_group(self, group_id):
             >>> except google.cloud.exceptions.NotFound:
             >>>     print('That group does not exist!')
 
-        :type group_id: string
+        :type group_id: str
         :param group_id: The ID of the group.
 
         :rtype: :class:`~google.cloud.monitoring.group.Group`
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/connection.py b/packages/google-cloud-monitoring/google/cloud/monitoring/connection.py
index aa00e004f05c..8b7200391161 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/connection.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/connection.py
@@ -27,7 +27,7 @@ class Connection(base_connection.JSONConnection):
     :type http: :class:`httplib2.Http` or class that defines ``request()``
     :param http: (Optional) HTTP object to make requests.
 
-    :type api_base_url: string
+    :type api_base_url: str
     :param api_base_url: The base of the API call URL. Defaults to the value
                          :attr:`Connection.API_BASE_URL`.
     """
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/group.py b/packages/google-cloud-monitoring/google/cloud/monitoring/group.py
index a708a579ba52..7779585301fa 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/group.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/group.py
@@ -38,14 +38,14 @@
 def _group_id_from_name(path, project=None):
     """Validate a group URI path and get the group ID.
 
-    :type path: string
+    :type path: str
     :param path: URI path for a group API request.
 
-    :type project: string or None
+    :type project: str or None
     :param project: The project associated with the request. It is
                     included for validation purposes.
 
-    :rtype: string
+    :rtype: str
     :returns: Group ID parsed from ``path``.
     :raises: :class:`ValueError` if the ``path`` is ill-formed or if
              the project from the ``path`` does not agree with the
@@ -57,13 +57,13 @@ def _group_id_from_name(path, project=None):
 def _group_name_from_id(project, group_id):
     """Build the group name given the project and group ID.
 
-    :type project: string
+    :type project: str
     :param project: The project associated with the group.
 
-    :type group_id: string
+    :type group_id: str
     :param group_id: The group ID.
 
-    :rtype: string
+    :rtype: str
     :returns: The fully qualified name of the group.
     """
     return 'projects/{project}/groups/{group_id}'.format(
@@ -76,23 +76,23 @@ class Group(object):
     :type client: :class:`google.cloud.monitoring.client.Client`
     :param client: A client for operating on the metric descriptor.
 
-    :type group_id: string or None
+    :type group_id: str or None
     :param group_id: The ID of the group.
 
-    :type display_name: string or None
+    :type display_name: str or None
     :param display_name:
         A user-assigned name for this group, used only for display purposes.
 
-    :type parent_id: string or None
+    :type parent_id: str or None
     :param parent_id:
         The ID of the group's parent, if it has one.
 
-    :type filter_string: string or None
+    :type filter_string: str or None
     :param filter_string:
         The filter string used to determine which monitored resources belong to
         this group.
 
-    :type is_cluster: boolean
+    :type is_cluster: bool
     :param is_cluster:
         If true, the members of this group are considered to be a cluster. The
         system can perform additional analysis on groups that are clusters.
@@ -296,7 +296,7 @@ def list_members(self, filter_string=None, end_time=None, start_time=None):
             ...     print(member)
 
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             An optional list filter describing the members to be returned. The
             filter may reference the type, labels, and metadata of monitored
@@ -365,7 +365,7 @@ def _fetch(cls, client, group_id):
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type group_id: string
+        :type group_id: str
         :param group_id: The group ID.
 
         :rtype: :class:`Group`
@@ -386,17 +386,17 @@ def _list(cls, client, children_of_group=None, ancestors_of_group=None,
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type children_of_group: string or None
+        :type children_of_group: str or None
         :param children_of_group:
             Returns groups whose parent_name field contains the group name. If
             no groups have this parent, the results are empty.
 
-        :type ancestors_of_group: string or None
+        :type ancestors_of_group: str or None
         :param ancestors_of_group:
             Returns groups that are ancestors of the specified group. If the
             specified group has no immediate parent, the results are empty.
 
-        :type descendants_of_group: string or None
+        :type descendants_of_group: str or None
         :param descendants_of_group:
             Returns the descendants of the specified group. This is a superset
             of the results returned by the children_of_group filter, and
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/label.py b/packages/google-cloud-monitoring/google/cloud/monitoring/label.py
index 1bc465238c6b..602a2eb99aa5 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/label.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/label.py
@@ -35,16 +35,16 @@ class LabelValueType(object):
 class LabelDescriptor(object):
     """Schema specification and documentation for a single label.
 
-    :type key: string
+    :type key: str
     :param key: The name of the label.
 
-    :type value_type: string
+    :type value_type: str
     :param value_type:
         The type of the label. It must be one of :data:`LabelValueType.STRING`,
         :data:`LabelValueType.BOOL`, or :data:`LabelValueType.INT64`.
         See :class:`LabelValueType`.
 
-    :type description: string
+    :type description: str
     :param description: A human-readable description for the label.
     """
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/metric.py b/packages/google-cloud-monitoring/google/cloud/monitoring/metric.py
index 69551c656ac2..f2cb5c7522d0 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/metric.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/metric.py
@@ -68,18 +68,18 @@ class MetricDescriptor(object):
     :type client: :class:`google.cloud.monitoring.client.Client`
     :param client: A client for operating on the metric descriptor.
 
-    :type type_: string
+    :type type_: str
     :param type_:
         The metric type including a DNS name prefix. For example:
         ``"compute.googleapis.com/instance/cpu/utilization"``
 
-    :type metric_kind: string
+    :type metric_kind: str
     :param metric_kind:
         The kind of measurement. It must be one of
         :data:`MetricKind.GAUGE`, :data:`MetricKind.DELTA`,
         or :data:`MetricKind.CUMULATIVE`. See :class:`MetricKind`.
 
-    :type value_type: string
+    :type value_type: str
     :param value_type:
         The value type of the metric. It must be one of
         :data:`ValueType.BOOL`, :data:`ValueType.INT64`,
@@ -93,16 +93,16 @@ class MetricDescriptor(object):
         A sequence of zero or more label descriptors specifying the labels
         used to identify a specific instance of this metric.
 
-    :type unit: string
+    :type unit: str
     :param unit: An optional unit in which the metric value is reported.
 
-    :type description: string
+    :type description: str
     :param description: An optional detailed description of the metric.
 
-    :type display_name: string
+    :type display_name: str
     :param display_name: An optional concise name for the metric.
 
-    :type name: string or None
+    :type name: str or None
     :param name:
         The "resource name" of the metric descriptor. For example:
         ``"projects/<project_id>/metricDescriptors/<type>"``. As
@@ -176,7 +176,7 @@ def _fetch(cls, client, metric_type):
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type metric_type: string
+        :type metric_type: str
         :param metric_type: The metric type name.
 
         :rtype: :class:`MetricDescriptor`
@@ -198,12 +198,12 @@ def _list(cls, client, filter_string=None, type_prefix=None):
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             An optional filter expression describing the metric descriptors
             to be returned. See the `filter documentation`_.
 
-        :type type_prefix: string or None
+        :type type_prefix: str or None
         :param type_prefix: An optional prefix constraining the selected
             metric types. This adds ``metric.type = starts_with("<prefix>")``
             to the filter.
@@ -324,7 +324,7 @@ class Metric(collections.namedtuple('Metric', 'type labels')):
     :meth:`~google.cloud.monitoring.client.Client.metric` factory method
     of the :class:`~google.cloud.monitoring.client.Client` class.
 
-    :type type: string
+    :type type: str
     :param type: The metric type name.
 
     :type labels: dict
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/query.py b/packages/google-cloud-monitoring/google/cloud/monitoring/query.py
index 685b21e5f1a9..e51f1d0cbc72 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/query.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/query.py
@@ -78,7 +78,7 @@ class Query(object):
     :type client: :class:`google.cloud.monitoring.client.Client`
     :param client: The client to use.
 
-    :type metric_type: string
+    :type metric_type: str
     :param metric_type: The metric type name. The default value is
         :data:`Query.DEFAULT_METRIC_TYPE
         <google.cloud.monitoring.query.Query.DEFAULT_METRIC_TYPE>`,
@@ -199,7 +199,7 @@ def select_group(self, group_id):
 
             query = query.select_group('1234567')
 
-        :type group_id: string
+        :type group_id: str
         :param group_id: The ID of a group to filter by.
 
         :rtype: :class:`Query`
@@ -362,7 +362,7 @@ def align(self, per_series_aligner, seconds=0, minutes=0, hours=0):
 
             query = query.align('ALIGN_MEAN', minutes=5)
 
-        :type per_series_aligner: string
+        :type per_series_aligner: str
         :param per_series_aligner: The approach to be used to align
             individual time series. For example: :data:`Aligner.ALIGN_MEAN`.
             See :class:`Aligner` and the descriptions of the `supported
@@ -402,13 +402,13 @@ def reduce(self, cross_series_reducer, *group_by_fields):
             query = query.reduce(Reducer.REDUCE_MEAN,
                                  'resource.project_id', 'resource.zone')
 
-        :type cross_series_reducer: string
+        :type cross_series_reducer: str
         :param cross_series_reducer:
             The approach to be used to combine time series. For example:
             :data:`Reducer.REDUCE_MEAN`. See :class:`Reducer` and the
             descriptions of the `supported reducers`_.
 
-        :type group_by_fields: strings
+        :type group_by_fields: strs
         :param group_by_fields:
             Fields to be preserved by the reduction. For example, specifying
             just ``"resource.zone"`` will result in one time series per zone.
@@ -442,7 +442,7 @@ def iter(self, headers_only=False, page_size=None):
             for timeseries in query.iter():
                 ...
 
-        :type headers_only: boolean
+        :type headers_only: bool
         :param headers_only:
              Whether to omit the point data from the time series objects.
 
@@ -505,7 +505,7 @@ def _build_query_params(self, headers_only=False,
         We use a series of key-value pairs (suitable for passing to
         ``urlencode``) instead of a ``dict`` to allow for repeated fields.
 
-        :type headers_only: boolean
+        :type headers_only: bool
         :param headers_only:
              Whether to omit the point data from the
              :class:`~google.cloud.monitoring.timeseries.TimeSeries` objects.
@@ -513,7 +513,7 @@ def _build_query_params(self, headers_only=False,
         :type page_size: integer or None
         :param page_size: A limit on the number of points to return per page.
 
-        :type page_token: string or None
+        :type page_token: str or None
         :param page_token: A token to continue the retrieval.
         """
         yield 'filter', self.filter
@@ -575,7 +575,7 @@ def as_dataframe(self, label=None, labels=None):
             dataframe = query.as_dataframe(
                 labels=['resource_type', 'instance_id'])
 
-        :type label: string or None
+        :type label: str or None
         :param label: The label name to use for the dataframe header.
             This can be the name of a resource label or metric label
             (e.g., ``"instance_name"``), or the string ``"resource_type"``.
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/resource.py b/packages/google-cloud-monitoring/google/cloud/monitoring/resource.py
index 736ce52ff6ec..e951006c1cf5 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/resource.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/resource.py
@@ -28,20 +28,20 @@
 class ResourceDescriptor(object):
     """Specification of a monitored resource type and its schema.
 
-    :type name: string
+    :type name: str
     :param name:
         The "resource name" of the monitored resource descriptor:
         ``"projects/<project_id>/monitoredResourceDescriptors/<type>"``
 
-    :type type_: string
+    :type type_: str
     :param type_:
         The monitored resource type. For example: ``"gce_instance"``
 
-    :type display_name: string
+    :type display_name: str
     :param display_name:
         A concise name that might be displayed in user interfaces.
 
-    :type description: string
+    :type description: str
     :param description:
         A detailed description that might be used in documentation.
 
@@ -66,7 +66,7 @@ def _fetch(cls, client, resource_type):
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type resource_type: string
+        :type resource_type: str
         :param resource_type: The resource type name.
 
         :rtype: :class:`ResourceDescriptor`
@@ -88,7 +88,7 @@ def _list(cls, client, filter_string=None):
         :type client: :class:`google.cloud.monitoring.client.Client`
         :param client: The client to use.
 
-        :type filter_string: string or None
+        :type filter_string: str or None
         :param filter_string:
             An optional filter expression describing the resource descriptors
             to be returned. See the `filter documentation`_.
@@ -163,7 +163,7 @@ class Resource(collections.namedtuple('Resource', 'type labels')):
     :meth:`~google.cloud.monitoring.client.Client.resource` factory method
     of the :class:`~google.cloud.monitoring.client.Client` class.
 
-    :type type: string
+    :type type: str
     :param type: The resource type name.
 
     :type labels: dict
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring/timeseries.py b/packages/google-cloud-monitoring/google/cloud/monitoring/timeseries.py
index 68dcfbcc9ad0..b46e5d830265 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring/timeseries.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring/timeseries.py
@@ -44,13 +44,13 @@ class TimeSeries(collections.namedtuple(
     :type resource: :class:`~google.cloud.monitoring.resource.Resource`
     :param resource: A resource object.
 
-    :type metric_kind: string
+    :type metric_kind: str
     :param metric_kind:
         The kind of measurement: :data:`MetricKind.GAUGE`,
         :data:`MetricKind.DELTA`, or :data:`MetricKind.CUMULATIVE`.
         See :class:`~google.cloud.monitoring.metric.MetricKind`.
 
-    :type value_type: string
+    :type value_type: str
     :param value_type:
         The value type of the metric: :data:`ValueType.BOOL`,
         :data:`ValueType.INT64`, :data:`ValueType.DOUBLE`,
@@ -176,10 +176,10 @@ def _make_typed_value(value):
 class Point(collections.namedtuple('Point', 'end_time start_time value')):
     """A single point in a time series.
 
-    :type end_time: string
+    :type end_time: str
     :param end_time: The end time in RFC3339 UTC "Zulu" format.
 
-    :type start_time: string or None
+    :type start_time: str or None
     :param start_time: An optional start time in RFC3339 UTC "Zulu" format.
 
     :type value: object