diff --git a/hypercoast/__init__.py b/hypercoast/__init__.py
index 66d66909..1d7586c6 100644
--- a/hypercoast/__init__.py
+++ b/hypercoast/__init__.py
@@ -3,3 +3,6 @@
 __author__ = """Qiusheng Wu"""
 __email__ = "giswqs@gmail.com"
 __version__ = "0.0.1"
+
+
+from .hypercoast import *
diff --git a/hypercoast/hypercoast.py b/hypercoast/hypercoast.py
index dd0b80ed..c88424aa 100644
--- a/hypercoast/hypercoast.py
+++ b/hypercoast/hypercoast.py
@@ -1 +1,16 @@
 """Main module."""
+
+import leafmap
+
+
+class Map(leafmap.Map):
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+
+    def search_emit(self, default_datset="EMITL2ARFL"):
+        """Search for Earth Engine datasets."""
+        self.add("nasa_earth_data", default_dataset=default_datset)
+
+    def search_pace(self, default_datset="PACE_OCI_L2_AOP_NRT"):
+        """Search for Earth Engine datasets."""
+        self.add("nasa_earth_data", default_dataset=default_datset)
diff --git a/requirements.txt b/requirements.txt
index 24ce15ab..2c15a196 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
+leafmap
 numpy