Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
gobject-introspection-devel
gobject-introspection-devel(x86-64)
pkgconfig(gobject-introspection-1.0)
pkgconfig(gobject-introspection-no-export-1.0)

Requires :

libc.so.6()(64bit)
libgirepository-1.0.so.1()(64bit)
libffi.so.6()(64bit)
/usr/bin/env
rtld(GNU_HASH)
libgio-2.0.so.0()(64bit)
pkgconfig(gmodule-no-export-2.0)
python-mako
libm.so.6(GLIBC_2.2.5)(64bit)
/usr/bin/python
rpmlib(PayloadIsXz) <= 5.2-1
gobject-introspection(x86-64) = 1.56.1-1.el7
libdl.so.2()(64bit)
libgmodule-2.0.so.0()(64bit)
libgobject-2.0.so.0()(64bit)
pkgconfig(glib-2.0)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
pkgconfig(libffi)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libpthread.so.0(GLIBC_2.2.5)(64bit)
pkgconfig(gmodule-2.0)
libpthread.so.0()(64bit)
libtool
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
libc.so.6(GLIBC_2.7)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
rpmlib(PartialHardlinkSets) <= 4.0.4-1
/usr/bin/pkg-config
libglib-2.0.so.0()(64bit)
libm.so.6()(64bit)
libc.so.6(GLIBC_2.3)(64bit)
pkgconfig(gobject-2.0)

Content of RPM :
/usr/bin/g-ir-annotation-tool
/usr/bin/g-ir-compiler
/usr/bin/g-ir-doc-tool
/usr/bin/g-ir-generate
/usr/bin/g-ir-inspect
/usr/bin/g-ir-scanner
/usr/include/gobject-introspection-1.0
/usr/include/gobject-introspection-1.0/giarginfo.h
/usr/include/gobject-introspection-1.0/gibaseinfo.h
/usr/include/gobject-introspection-1.0/gicallableinfo.h
/usr/include/gobject-introspection-1.0/giconstantinfo.h
/usr/include/gobject-introspection-1.0/gienuminfo.h
/usr/include/gobject-introspection-1.0/gifieldinfo.h
/usr/include/gobject-introspection-1.0/gifunctioninfo.h
/usr/include/gobject-introspection-1.0/giinterfaceinfo.h
/usr/include/gobject-introspection-1.0/giobjectinfo.h
/usr/include/gobject-introspection-1.0/gipropertyinfo.h
/usr/include/gobject-introspection-1.0/giregisteredtypeinfo.h
/usr/include/gobject-introspection-1.0/girepository.h
/usr/include/gobject-introspection-1.0/girffi.h
/usr/include/gobject-introspection-1.0/gisignalinfo.h
/usr/include/gobject-introspection-1.0/gistructinfo.h
/usr/include/gobject-introspection-1.0/gitypeinfo.h
/usr/include/gobject-introspection-1.0/gitypelib.h
/usr/include/gobject-introspection-1.0/gitypes.h
/usr/include/gobject-introspection-1.0/giunioninfo.h
/usr/include/gobject-introspection-1.0/giversionmacros.h
/usr/include/gobject-introspection-1.0/givfuncinfo.h
/usr/lib64/gobject-introspection
/usr/lib64/gobject-introspection/giscanner
There is 237 files more in these RPM.